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	<id>https://wiki.opensourceecology.org/index.php?action=history&amp;feed=atom&amp;title=Biodigester_v18.01</id>
	<title>Biodigester v18.01 - Revision history</title>
	<link rel="self" type="application/atom+xml" href="https://wiki.opensourceecology.org/index.php?action=history&amp;feed=atom&amp;title=Biodigester_v18.01"/>
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	<updated>2026-05-14T16:02:13Z</updated>
	<subtitle>Revision history for this page on the wiki</subtitle>
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	<entry>
		<id>https://wiki.opensourceecology.org/index.php?title=Biodigester_v18.01&amp;diff=164608&amp;oldid=prev</id>
		<title>Marcin: /* Nitrogen Ratio Calculations */</title>
		<link rel="alternate" type="text/html" href="https://wiki.opensourceecology.org/index.php?title=Biodigester_v18.01&amp;diff=164608&amp;oldid=prev"/>
		<updated>2018-01-23T19:51:52Z</updated>

		<summary type="html">&lt;p&gt;&lt;span dir=&quot;auto&quot;&gt;&lt;span class=&quot;autocomment&quot;&gt;Nitrogen Ratio Calculations&lt;/span&gt;&lt;/span&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
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				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 19:51, 23 January 2018&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l8&quot;&gt;Line 8:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 8:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;:* Peeing 10x and flushing with one gallon - 10 gallons of input can handle up to 200 g of nitrogen in that input, assuming adequate ratios of carbon were available.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;:* Peeing 10x and flushing with one gallon - 10 gallons of input can handle up to 200 g of nitrogen in that input, assuming adequate ratios of carbon were available.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;*Americans produce 90M gallons of urine per day, with 7M lb nitrogen. [http://www.goveganic.net/article217.html]. Per capita urine  is thus 0.02 lb per day, or 9 grams. If urine is caught in a biodigester only during defecation, and other times it can be flushed separately, then only 1-2 grams of nitrogen would enter the biodigester per person from urination. This is fine for digester loading if the retention time of a  550 gallon digester is 60 days, or 10 gallons input per day. In the 10 gallon per day instance, human urine loading is only up to 0.2 g/gal per person, or 0.05 g/l. 5g/L is acceptable, so the human urine contribution in this scenario acceptable with a safety factor of 100.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;*Americans produce 90M gallons of urine per day, with 7M lb nitrogen. [http://www.goveganic.net/article217.html]. Per capita urine  is thus 0.02 lb per day, or 9 grams. If urine is caught in a biodigester only during defecation, and other times it can be flushed separately, then only 1-2 grams of nitrogen would enter the biodigester per person from urination. This is fine for digester loading if the retention time of a  550 gallon digester is 60 days, or 10 gallons input per day. In the 10 gallon per day instance, human urine loading is only up to 0.2 g/gal per person, or 0.05 g/l. 5g/L is acceptable, so the human urine contribution in this scenario acceptable with a safety factor of 100.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;=Links=&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;*[[Biodigester]]&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;

&lt;!-- diff cache key wikidb-wiki_:diff::1.12:old-163846:rev-164608 --&gt;
&lt;/table&gt;</summary>
		<author><name>Marcin</name></author>
	</entry>
	<entry>
		<id>https://wiki.opensourceecology.org/index.php?title=Biodigester_v18.01&amp;diff=163846&amp;oldid=prev</id>
		<title>Marcin at 00:55, 14 January 2018</title>
		<link rel="alternate" type="text/html" href="https://wiki.opensourceecology.org/index.php?title=Biodigester_v18.01&amp;diff=163846&amp;oldid=prev"/>
		<updated>2018-01-14T00:55:08Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
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				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 00:55, 14 January 2018&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l1&quot;&gt;Line 1:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 1:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;=Development=&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;=Development=&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&amp;lt;html&amp;gt;&amp;lt;iframe src=&amp;quot;https://docs.google.com/spreadsheets/d/e/2PACX-1vQpirbwKY39jC2MKGkwVgpnd0utm8rqvveKEQNNG9X5lVbfAvm7cDWtqdTuGl8ayBzbk-dAMAkJR21E/pubhtml?widget=true&amp;amp;amp;headers=false&amp;quot;&amp;gt;&amp;lt;/iframe&amp;gt;&amp;lt;/html&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&amp;lt;html&amp;gt;&amp;lt;iframe src=&amp;quot;https://docs.google.com/spreadsheets/d/e/2PACX-1vQpirbwKY39jC2MKGkwVgpnd0utm8rqvveKEQNNG9X5lVbfAvm7cDWtqdTuGl8ayBzbk-dAMAkJR21E/pubhtml?widget=true&amp;amp;amp;headers=false&amp;quot; &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;height=500 width=500&lt;/ins&gt;&amp;gt;&amp;lt;/iframe&amp;gt;&amp;lt;/html&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br/&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br/&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[https://docs.google.com/spreadsheets/d/1v1B91jqwZwoM-65NsYKQp9KYybsxvH_TxA_rvuYj1RY/edit#gid=1 edit]&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[https://docs.google.com/spreadsheets/d/1v1B91jqwZwoM-65NsYKQp9KYybsxvH_TxA_rvuYj1RY/edit#gid=1 edit]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;

&lt;!-- diff cache key wikidb-wiki_:diff::1.12:old-163845:rev-163846 --&gt;
&lt;/table&gt;</summary>
		<author><name>Marcin</name></author>
	</entry>
	<entry>
		<id>https://wiki.opensourceecology.org/index.php?title=Biodigester_v18.01&amp;diff=163845&amp;oldid=prev</id>
		<title>Marcin at 00:39, 14 January 2018</title>
		<link rel="alternate" type="text/html" href="https://wiki.opensourceecology.org/index.php?title=Biodigester_v18.01&amp;diff=163845&amp;oldid=prev"/>
		<updated>2018-01-14T00:39:13Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
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				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 00:39, 14 January 2018&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l7&quot;&gt;Line 7:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 7:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;*23:1 to 10:1 carbon to nitrogen ratio is acceptable in feedstocks - [http://www.fao.org/docrep/t0541e/T0541E06.htm]. Nitrogen concentration of up to 5g/L are acceptable.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;*23:1 to 10:1 carbon to nitrogen ratio is acceptable in feedstocks - [http://www.fao.org/docrep/t0541e/T0541E06.htm]. Nitrogen concentration of up to 5g/L are acceptable.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;:* Peeing 10x and flushing with one gallon - 10 gallons of input can handle up to 200 g of nitrogen in that input, assuming adequate ratios of carbon were available.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;:* Peeing 10x and flushing with one gallon - 10 gallons of input can handle up to 200 g of nitrogen in that input, assuming adequate ratios of carbon were available.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;*Americans produce 90M gallons of urine per day, with 7M lb nitrogen. [http://www.goveganic.net/article217.html]. Per capita urine  is thus 0.02 lb per day, or 9 grams. If urine is caught in a biodigester only during defecation, and other times it can be flushed separately, then only 1-2 grams of nitrogen would enter the biodigester per person from urination.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;*Americans produce 90M gallons of urine per day, with 7M lb nitrogen. [http://www.goveganic.net/article217.html]. Per capita urine  is thus 0.02 lb per day, or 9 grams. If urine is caught in a biodigester only during defecation, and other times it can be flushed separately, then only 1-2 grams of nitrogen would enter the biodigester per person from urination&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;. This is fine for digester loading if the retention time of a  550 gallon digester is 60 days, or 10 gallons input per day. In the 10 gallon per day instance, human urine loading is only up to 0.2 g/gal per person, or 0.05 g/l. 5g/L is acceptable, so the human urine contribution in this scenario acceptable with a safety factor of 100&lt;/ins&gt;.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;

&lt;!-- diff cache key wikidb-wiki_:diff::1.12:old-163844:rev-163845 --&gt;
&lt;/table&gt;</summary>
		<author><name>Marcin</name></author>
	</entry>
	<entry>
		<id>https://wiki.opensourceecology.org/index.php?title=Biodigester_v18.01&amp;diff=163844&amp;oldid=prev</id>
		<title>Marcin at 00:33, 14 January 2018</title>
		<link rel="alternate" type="text/html" href="https://wiki.opensourceecology.org/index.php?title=Biodigester_v18.01&amp;diff=163844&amp;oldid=prev"/>
		<updated>2018-01-14T00:33:58Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
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				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 00:33, 14 January 2018&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l1&quot;&gt;Line 1:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 1:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;=Development=&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&amp;lt;html&gt;&amp;lt;iframe src=&quot;https://docs.google.com/spreadsheets/d/e/2PACX-1vQpirbwKY39jC2MKGkwVgpnd0utm8rqvveKEQNNG9X5lVbfAvm7cDWtqdTuGl8ayBzbk-dAMAkJR21E/pubhtml?widget=true&amp;amp;amp;headers=false&quot;&gt;&amp;lt;/iframe&gt;&amp;lt;/html&gt;&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;[https://docs.google.com/spreadsheets/d/1v1B91jqwZwoM-65NsYKQp9KYybsxvH_TxA_rvuYj1RY/edit#gid=1 edit]&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;=Nitrogen Ratio Calculations=&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;=Nitrogen Ratio Calculations=&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;*23:1 to 10:1 carbon to nitrogen ratio is acceptable in feedstocks - [http://www.fao.org/docrep/t0541e/T0541E06.htm]. Nitrogen concentration of up to 5g/L are acceptable.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;*23:1 to 10:1 carbon to nitrogen ratio is acceptable in feedstocks - [http://www.fao.org/docrep/t0541e/T0541E06.htm]. Nitrogen concentration of up to 5g/L are acceptable.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;:* Peeing 10x and flushing with one gallon - 10 gallons of input can handle up to 200 g of nitrogen in that input, assuming adequate ratios of carbon were available.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;:* Peeing 10x and flushing with one gallon - 10 gallons of input can handle up to 200 g of nitrogen in that input, assuming adequate ratios of carbon were available.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;*Americans produce 90M gallons of urine per day, with 7M lb nitrogen. [http://www.goveganic.net/article217.html]. Per capita urine  is thus 0.02 lb per day, or 9 grams. If urine is caught in a biodigester only during defecation, and other times it can be flushed separately, then only 1-2 grams of nitrogen would enter the biodigester per person from urination.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;*Americans produce 90M gallons of urine per day, with 7M lb nitrogen. [http://www.goveganic.net/article217.html]. Per capita urine  is thus 0.02 lb per day, or 9 grams. If urine is caught in a biodigester only during defecation, and other times it can be flushed separately, then only 1-2 grams of nitrogen would enter the biodigester per person from urination.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;

&lt;!-- diff cache key wikidb-wiki_:diff::1.12:old-163843:rev-163844 --&gt;
&lt;/table&gt;</summary>
		<author><name>Marcin</name></author>
	</entry>
	<entry>
		<id>https://wiki.opensourceecology.org/index.php?title=Biodigester_v18.01&amp;diff=163843&amp;oldid=prev</id>
		<title>Marcin at 00:32, 14 January 2018</title>
		<link rel="alternate" type="text/html" href="https://wiki.opensourceecology.org/index.php?title=Biodigester_v18.01&amp;diff=163843&amp;oldid=prev"/>
		<updated>2018-01-14T00:32:05Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
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				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 00:32, 14 January 2018&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l1&quot;&gt;Line 1:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 1:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;=Nitrogen Ratio=&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;=Nitrogen Ratio &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Calculations&lt;/ins&gt;=&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;*23:1 to 10:1 carbon to nitrogen ratio is acceptable in feedstocks - [http://www.fao.org/docrep/t0541e/T0541E06.htm]. Nitrogen concentration of up to 5g/L are acceptable.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;*23:1 to 10:1 carbon to nitrogen ratio is acceptable in feedstocks - [http://www.fao.org/docrep/t0541e/T0541E06.htm]. Nitrogen concentration of up to 5g/L are acceptable.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;:* Peeing 10x and flushing with one gallon - 10 gallons of input can handle up to 200 g of nitrogen in that input, assuming adequate ratios of carbon were available.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;:* Peeing 10x and flushing with one gallon - 10 gallons of input can handle up to 200 g of nitrogen in that input, assuming adequate ratios of carbon were available.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;*Americans produce 90M gallons of urine per day, with 7M lb nitrogen. [http://www.goveganic.net/article217.html]. Per capita urine  is thus 0.02 lb per day, or 9 grams. If urine is caught in a biodigester only during defecation, and other times it can be flushed separately, then only 1-2 grams of nitrogen would enter the biodigester per person from urination.&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;

&lt;!-- diff cache key wikidb-wiki_:diff::1.12:old-163842:rev-163843 --&gt;
&lt;/table&gt;</summary>
		<author><name>Marcin</name></author>
	</entry>
	<entry>
		<id>https://wiki.opensourceecology.org/index.php?title=Biodigester_v18.01&amp;diff=163842&amp;oldid=prev</id>
		<title>Marcin: Created page with &quot;=Nitrogen Ratio= *23:1 to 10:1 carbon to nitrogen ratio is acceptable in feedstocks - [http://www.fao.org/docrep/t0541e/T0541E06.htm]. Nitrogen concentration of up to 5g/L are...&quot;</title>
		<link rel="alternate" type="text/html" href="https://wiki.opensourceecology.org/index.php?title=Biodigester_v18.01&amp;diff=163842&amp;oldid=prev"/>
		<updated>2018-01-14T00:21:35Z</updated>

		<summary type="html">&lt;p&gt;Created page with &amp;quot;=Nitrogen Ratio= *23:1 to 10:1 carbon to nitrogen ratio is acceptable in feedstocks - [http://www.fao.org/docrep/t0541e/T0541E06.htm]. Nitrogen concentration of up to 5g/L are...&amp;quot;&lt;/p&gt;
&lt;p&gt;&lt;b&gt;New page&lt;/b&gt;&lt;/p&gt;&lt;div&gt;=Nitrogen Ratio=&lt;br /&gt;
*23:1 to 10:1 carbon to nitrogen ratio is acceptable in feedstocks - [http://www.fao.org/docrep/t0541e/T0541E06.htm]. Nitrogen concentration of up to 5g/L are acceptable.&lt;br /&gt;
:* Peeing 10x and flushing with one gallon - 10 gallons of input can handle up to 200 g of nitrogen in that input, assuming adequate ratios of carbon were available.&lt;/div&gt;</summary>
		<author><name>Marcin</name></author>
	</entry>
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