Demonstrating Compliance with Stringent Nitrogen Limits Using a Biological Nutrient Removal Process in California’s Central Valley
The Sacramento Regional County Sanitation District (District) must be compliant with stringent nitrogen limits by 2021 that the existing treatment facilities cannot meet. An 11-month pilot study was conducted to confirm that these limits could be met with an air activated sludge biological nutrient...
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| Veröffentlicht in: | Water environment research 2015-12, Vol.87 (12), p.2053-2064 |
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| container_title | Water environment research |
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| creator | Merlo, Rion Witzgall, Bob Yu, William Ohlinger, Kurt Ramberg, Steve De Las Casas, Carla Henneman, Seppi Parker, Denny |
| description | The Sacramento Regional County Sanitation District (District) must be compliant with stringent nitrogen limits by 2021 that the existing treatment facilities cannot meet. An 11-month pilot study was conducted to confirm that these limits could be met with an air activated sludge biological nutrient removal (BNR) process. The pilot BNR treated an average flow of 946 m³/d and demonstrated that it could reliably meet the ammonia limit, but that external carbon addition may be necessary to satisfy the nitrate limit. The BNR process performed well throughout the 11 months of operation with good settleability, minimal nocardioform content, and high quality secondary effluent. The BNR process was operated at a minimum pH of 6.4 with no noticeable impact to nitrification rates. Increased secondary sludge production was observed during rainfall events and is attributed to a change in wastewater influent characteristics. |
| doi_str_mv | 10.2175/106143015X14362865227238 |
| format | Article |
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An 11-month pilot study was conducted to confirm that these limits could be met with an air activated sludge biological nutrient removal (BNR) process. The pilot BNR treated an average flow of 946 m³/d and demonstrated that it could reliably meet the ammonia limit, but that external carbon addition may be necessary to satisfy the nitrate limit. The BNR process performed well throughout the 11 months of operation with good settleability, minimal nocardioform content, and high quality secondary effluent. The BNR process was operated at a minimum pH of 6.4 with no noticeable impact to nitrification rates. Increased secondary sludge production was observed during rainfall events and is attributed to a change in wastewater influent characteristics.</description><identifier>ISSN: 1061-4303</identifier><identifier>EISSN: 1554-7531</identifier><identifier>DOI: 10.2175/106143015X14362865227238</identifier><identifier>PMID: 26652118</identifier><language>eng</language><publisher>United States: John Wiley and Sons, Inc</publisher><subject>Aerobiosis ; alkalinity ; ammonia ; Anaerobiosis ; biological nutrient removal ; Bioreactors ; California ; nitrate ; Nitrification ; Nitrogen ; Nitrogen - chemistry ; Nutrient removal ; Pilot Projects ; Rain ; Sludge ; Time Factors ; Waste Disposal Facilities ; Water Pollutants, Chemical - chemistry ; Water Pollutants, Chemical - metabolism ; Water treatment</subject><ispartof>Water environment research, 2015-12, Vol.87 (12), p.2053-2064</ispartof><rights>2015 Water Environment Federation</rights><rights>Copyright Water Environment Federation Dec 1, 2015</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><cites>FETCH-LOGICAL-c4013-257b6ba69cfd1089bc642899dddd159272c970050569085eed2a99bd0c60a3fb3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.jstor.org/stable/pdf/26662354$$EPDF$$P50$$Gjstor$$H</linktopdf><linktohtml>$$Uhttps://www.jstor.org/stable/26662354$$EHTML$$P50$$Gjstor$$H</linktohtml><link.rule.ids>314,776,780,799,1411,27901,27902,45550,45551,57992,58225</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/26652118$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Merlo, Rion</creatorcontrib><creatorcontrib>Witzgall, Bob</creatorcontrib><creatorcontrib>Yu, William</creatorcontrib><creatorcontrib>Ohlinger, Kurt</creatorcontrib><creatorcontrib>Ramberg, Steve</creatorcontrib><creatorcontrib>De Las Casas, Carla</creatorcontrib><creatorcontrib>Henneman, Seppi</creatorcontrib><creatorcontrib>Parker, Denny</creatorcontrib><title>Demonstrating Compliance with Stringent Nitrogen Limits Using a Biological Nutrient Removal Process in California’s Central Valley</title><title>Water environment research</title><addtitle>Water Environ Res</addtitle><description>The Sacramento Regional County Sanitation District (District) must be compliant with stringent nitrogen limits by 2021 that the existing treatment facilities cannot meet. 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| source | Jstor Complete Legacy; Wiley; MEDLINE |
| subjects | Aerobiosis alkalinity ammonia Anaerobiosis biological nutrient removal Bioreactors California nitrate Nitrification Nitrogen Nitrogen - chemistry Nutrient removal Pilot Projects Rain Sludge Time Factors Waste Disposal Facilities Water Pollutants, Chemical - chemistry Water Pollutants, Chemical - metabolism Water treatment |
| title | Demonstrating Compliance with Stringent Nitrogen Limits Using a Biological Nutrient Removal Process in California’s Central Valley |
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