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START-UP AND INITIAL OPERATION OF A GROUNDWATER DENITRIFICATION FACILITY
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Description: Book cover
START-UP AND INITIAL OPERATION OF A GROUNDWATER DENITRIFICATION FACILITY

START-UP AND INITIAL OPERATION OF A GROUNDWATER DENITRIFICATION FACILITY

START-UP AND INITIAL OPERATION OF A GROUNDWATER DENITRIFICATION FACILITY

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Description: Book cover
START-UP AND INITIAL OPERATION OF A GROUNDWATER DENITRIFICATION FACILITY
Abstract
A Groundwater Denitrification Facility (GDF) utilizing Biofor™ technology was constructed and started-up in February, 1999 to reduce total nitrogen in the groundwater to levels acceptable for discharge into the ocean. Biofor™ is a submerged biological filter comprised of a fixed, dense granular bed through which influent wastewater flows in the upward direction. The start-up period for a biological treatment process requires that the operator initiate growth, begin treatment, and subsequently stabilize the process. Understanding that influent groundwater was low in organic carbon and phosphorus, methanol and phosphorus acid solutions were added to sustain biological growth. Backwash was seldom conducted during the first weeks of start-up because the objective was to cultivate biomass. As the denitrification process matured, more frequent backwash episodes were required. The system was originally approved to discharge backwash waste containing high suspended solids or BOD5, however, concentrations of both were increasing in the effluent due to frequent backwash. Modification of the system by separating the treated effluent and backwash wastewater became necessary to guarantee the effluent TSS and BOD5 discharge limits to be met.
A Groundwater Denitrification Facility (GDF) utilizing Biofor™ technology was constructed and started-up in February, 1999 to reduce total nitrogen in the groundwater to levels acceptable for discharge into the ocean. Biofor™ is a submerged biological filter comprised of a fixed, dense granular bed through which influent wastewater flows in the upward direction. The start-up period for...
Author(s)
Ying BianJinghui NiuMichael J. LewisStephen Tarallo
SourceProceedings of the Water Environment Federation
SubjectSession 73 - Plant Operations I: Plant Operations and Maintenance—Biological Systems
Document typeConference Paper
PublisherWater Environment Federation
Print publication date Jan, 2001
ISSN1938-6478
SICI1938-6478(20010101)2001:9L.212;1-
DOI10.2175/193864701790861505
Volume / Issue2001 / 9
Content sourceWEFTEC
First / last page(s)212 - 223
Copyright2001
Word count186

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Description: Book cover
START-UP AND INITIAL OPERATION OF A GROUNDWATER DENITRIFICATION FACILITY
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Description: Book cover
START-UP AND INITIAL OPERATION OF A GROUNDWATER DENITRIFICATION FACILITY
Abstract
A Groundwater Denitrification Facility (GDF) utilizing Biofor™ technology was constructed and started-up in February, 1999 to reduce total nitrogen in the groundwater to levels acceptable for discharge into the ocean. Biofor™ is a submerged biological filter comprised of a fixed, dense granular bed through which influent wastewater flows in the upward direction. The start-up period for a biological treatment process requires that the operator initiate growth, begin treatment, and subsequently stabilize the process. Understanding that influent groundwater was low in organic carbon and phosphorus, methanol and phosphorus acid solutions were added to sustain biological growth. Backwash was seldom conducted during the first weeks of start-up because the objective was to cultivate biomass. As the denitrification process matured, more frequent backwash episodes were required. The system was originally approved to discharge backwash waste containing high suspended solids or BOD5, however, concentrations of both were increasing in the effluent due to frequent backwash. Modification of the system by separating the treated effluent and backwash wastewater became necessary to guarantee the effluent TSS and BOD5 discharge limits to be met.
A Groundwater Denitrification Facility (GDF) utilizing Biofor™ technology was constructed and started-up in February, 1999 to reduce total nitrogen in the groundwater to levels acceptable for discharge into the ocean. Biofor™ is a submerged biological filter comprised of a fixed, dense granular bed through which influent wastewater flows in the upward direction. The start-up period for...
Author(s)
Ying BianJinghui NiuMichael J. LewisStephen Tarallo
SourceProceedings of the Water Environment Federation
SubjectSession 73 - Plant Operations I: Plant Operations and Maintenance—Biological Systems
Document typeConference Paper
PublisherWater Environment Federation
Print publication date Jan, 2001
ISSN1938-6478
SICI1938-6478(20010101)2001:9L.212;1-
DOI10.2175/193864701790861505
Volume / Issue2001 / 9
Content sourceWEFTEC
First / last page(s)212 - 223
Copyright2001
Word count186

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Ying Bian# Jinghui Niu# Michael J. Lewis# Stephen Tarallo. START-UP AND INITIAL OPERATION OF A GROUNDWATER DENITRIFICATION FACILITY. Alexandria, VA 22314-1994, USA: Water Environment Federation, 2018. Web. 12 Oct. 2025. <https://www.accesswater.org?id=-288642CITANCHOR>.
Ying Bian# Jinghui Niu# Michael J. Lewis# Stephen Tarallo. START-UP AND INITIAL OPERATION OF A GROUNDWATER DENITRIFICATION FACILITY. Alexandria, VA 22314-1994, USA: Water Environment Federation, 2018. Accessed October 12, 2025. https://www.accesswater.org/?id=-288642CITANCHOR.
Ying Bian# Jinghui Niu# Michael J. Lewis# Stephen Tarallo
START-UP AND INITIAL OPERATION OF A GROUNDWATER DENITRIFICATION FACILITY
Access Water
Water Environment Federation
December 22, 2018
October 12, 2025
https://www.accesswater.org/?id=-288642CITANCHOR