Joint Water Pollution Control Plant Research Articles

Developing a regional recycled water program in Southern California

Abstract The Metropolitan Water District of Southern California (Metropolitan) and the Sanitation Districts of Los Angeles County (Sanitation Districts) are exploring the potential of a Regional Recycled Water Program (RRWP) to beneficially reuse water currently discharged to the Pacific Ocean. The program would consist of a new advanced water treatment (AWT) facility at the Sanitation Districts' Joint Water Pollution Control Plant (JWPCP) in Carson, California, USA, capable of producing an ultimate flow of 581 MLD (150 MGD). The full-scale facility would treat effluent from the JWPCP using an AWT train comprising a membrane bioreactor (MBR), followed by reverse osmosis (RO) and ultraviolet light advanced oxidation (UV/AOP). After MBR-RO-UV/AOP treatment, the treated water would be distributed to groundwater basins in Los Angeles and Orange counties to recharge their aquifers. This program would diversify the region's water resources and significantly contribute to long-term water supply targets outlined in Metropolitan's Integrated Water Resources Plan. A feasibility study for the RRWP was completed in 2016, confirming its technical viability. Currently, Metropolitan and the Sanitation Districts recently completed conceptual planning studies to investigate implementation options for a full-scale program, and constructed a 1.9 MLD (0.5 MGD) AWT demonstration facility. Although large facilities employing membrane filtration (MF)-RO-UV/AOP are currently permitted and operating in California, there are no facilities using an MBR-RO-UV/AOP train. The AWT demonstration facility – the Regional Recycled Water Advanced Purification Center – will build on recent research in Australia and the USA to develop a regulatory strategy to incorporate MBR into a potable reuse advanced treatment train.

Mainstream ANITA Mox Pilot Testing at the Joint Water Pollution Control Plant

Mainstream ANITA Mox Pilot Testing at the Joint Water Pollution Control Plant

Digester Gas Hydrogen Sulfide Control Using a Full-scale Biotrickling Filter at the Joint Water Pollution Control Plant

Digester Gas Hydrogen Sulfide Control Using a Full-scale Biotrickling Filter at the Joint Water Pollution Control Plant

A Full-Scale Demonstration Food Waste and Sewage Sludge Co-Digestion Project at the Joint Water Pollution Control Plant

A Full-Scale Demonstration Food Waste and Sewage Sludge Co-Digestion Project at the Joint Water Pollution Control Plant

Pilot-Scale Evaluation of ANITATM Mox for Centrate Nitrogen Removal at the Joint Water Pollution Control Plant

Pilot-Scale Evaluation of ANITA^TM Mox for Centrate Nitrogen Removal at the Joint Water Pollution Control Plant

Controlling Volatile Organic Compound Emissions Using Biological Techniques at the Joint Water Pollution Control Plant

Controlling Volatile Organic Compound Emissions Using Biological Techniques at the Joint Water Pollution Control Plant

Pilot Study of Advanced Treatment Processes to Recycle JWPCP Secondary Effluent

Pilot Study of Advanced Treatment Processes to Recycle JWPCP Secondary EffluentA collaborative project between the Sanitation Districts of Los Angeles County and the Metropolitan Water District of Southern California was initiated to evaluate the feasibility of purifying secondary effluent from the Districts' Joint Water Pollution Control Plant for a regional indirect potable reuse program.The study tested two separate advanced water treatment process trains to determine the...Author(s)N. SmalR. MortonJ. BarryT. KnappC.-C. TangR. TremblayP. FriessS. MaguinSourceProceedings of the Water Environment FederationSubjectSession 48: Advances in Treatment Technologies for Potable ReuseDocument typeConference PaperPublisherWater Environment FederationPrint publication date Jan, 2011ISSN1938-6478SICI1938-6478(20110101)2011:14L.2979;1-DOI10.2175/193864711802721307Volume / Issue2011 / 14Content sourceWEFTECFirst / last page(s)2979 - 2994Copyright2011Word count270Subject keywordsAdvanced Water TreatmentWater ReuseUltrafiltrationMembrane BioreactorReverse OsmosisAdvanced Oxidation ProcessUVHydrogen Peroxide

Performance of A Large-Scale Biotrickling Filter and Activated Carbon Odor Scrubber System At the Joint Water Pollution Control Plant

Performance of A Large-Scale Biotrickling Filter and Activated Carbon Odor Scrubber System At the Joint Water Pollution Control Plant

Full Scale and Laboratory Scale Results from the Trial of MicroSludge at the Joint Water Pollution Control Plant at Los Angeles County

Full Scale and Laboratory Scale Results from the Trial of MicroSludge at the Joint Water Pollution Control Plant at Los Angeles County

Concurrent Evaluation of Large High-Solids Dewatering Centrifuges: Initial Results

Concurrent Evaluation of Large High-Solids Dewatering Centrifuges: Initial ResultsEquipment startup for a long-term evaluation of three large high-solids centrifuges from two different manufacturers began in May 2003 at the Los Angeles County Sanitation Districts' Joint Water Pollution Control Plant in Carson, California. These three centrifuges, two of which are identical except for the backdrive configuration, are in addition to a fourth high-solids centrifuge from a third...Author(s)David PierceDavid BachtelJames BarrySteve KraiRoya PhillipsSourceProceedings of the Water Environment FederationSubjectSession 6: Thickening and Dewatering TechnologiesDocument typeConference PaperPublisherWater Environment FederationPrint publication date Jan, 2004ISSN1938-6478SICI1938-6478(20040101)2004:1L.381;1-DOI10.2175/193864704784343388Volume / Issue2004 / 1Content sourceResiduals and Biosolids ConferenceFirst / last page(s)381 - 394Copyright2004Word count459

Full Scale Testing of Biofilters for Odor Control at the Los Angeles County Sanitation Districts' Joint Water Pollution Control Plant Biosolids Handling Facilities

Full Scale Testing of Biofilters for Odor Control at the Los Angeles County Sanitation Districts' Joint Water Pollution Control Plant Biosolids Handling FacilitiesOdor control has always been a primary concern for the Los Angeles County Sanitation Districts (Districts) in the operation of its wastewater treatment facilities. During the dewatering, conveying and storage of biosolids there can be the potential to produce significant off-site odors. The Districts' operate one of the largest biosolids dewatering facilities in the United States at its Joint...Author(s)Robert MortonPhil AckmanGlen AcostaChi-Chung TangRobert HorvathJim StahlSourceProceedings of the Water Environment FederationSubjectSession 53 Management of Odors and VOCs: Clearing the Air: New Approaches to Odor Control IssuesDocument typeConference PaperPublisherWater Environment FederationPrint publication date Jan, 2003ISSN1938-6478SICI1938-6478(20030101)2003:7L.122;1-DOI10.2175/193864703784641216Volume / Issue2003 / 7Content sourceWEFTECFirst / last page(s)122 - 137Copyright2003Word count340

Biosolids Dewatering Facilities Odor Control at the Los Angeles County Sanitation Districts' Joint Water Pollution Control Plant

Biosolids Dewatering Facilities Odor Control at the Los Angeles County Sanitation Districts' Joint Water Pollution Control PlantThe Los Angeles County Sanitation Districts operates one of the largest biosolids dewatering facilities in the United States at its Joint Water Pollution Control Plant. This facility, which produces over 1300 wet tons/day of biosolids, includes structures and equipment such as sludge storage wet wells, centrifuges, open belt conveyors, biosolids storage silos, and truck loading stations. The Joint...Author(s)Robert MortonDave BachtelMark PettitPhil AckmanPhil FriessRichard PopeChester MortonSourceProceedings of the Water Environment FederationSubjectSession 34 - Management of Odors and VOCs: Odors and VOCs IIDocument typeConference PaperPublisherWater Environment FederationPrint publication date Jan, 2002ISSN1938-6478SICI1938-6478(20020101)2002:14L.279;1-DOI10.2175/193864702784247963Volume / Issue2002 / 14Content sourceWEFTECFirst / last page(s)279 - 293Copyright2002Word count355

Evaluation of Equipment for the Screening of Digested Solids Prior to Centrifugation: A Case Study at the Joint Water Pollution Control Plant

Evaluation of Equipment for the Screening of Digested Solids Prior to Centrifugation: A Case Study at the Joint Water Pollution Control Plant

Economics of Anaerobic Sludge Digestion in Cylindrical Digesters at the Joint Water Pollution Control Plant

Economics of Anaerobic Sludge Digestion in Cylindrical Digesters at the Joint Water Pollution Control Plant

Evaluation of tertiary filtration and disinfection systems for upgrading high-purity oxygen-activated sludge plant effluent

The Joint Water Pollution Control Plant (JWPCP) of the Sanitation Districts of Los Angeles County provides advanced primary and partial secondary treatment for 15.3 m 3 /s (350 MGD) of wastewater. A 7-mo pilot plant study evaluated several tertiary treatment alternatives for in-plant water reuse. The influent to the tertiary treatment system was the high-purity oxygen-activated sludge plant effluent. Three filtration systems were evaluated : a deep-bed anthracite filter, a shallow-depth pulsed-bed sand filter, and a continuous backwash deep-bed sand filter. Chlorination and ultraviolet (UV) disinfection were also compared. All three filters were capable of consistently meeting the State of California's effluent turbidity limit. The differences in turbidity removal efficiencies were insignificant. Changes in hydraulic loading rate, up to 0.2 m 3 /m 2 .min (5 gpm/ft 2 ), had insignificant effects on the quality of all filter effluents when filtering normal secondary effluent. The effect of chemical filter-aids on turbidity removal depended strongly on the characteristics of the filter influent and the filter design configuration. Breakthrough of alum might occur with an excessive dosage of alum. The estimated costs for filtering the secondary effluent by the three filters were similar. A high-UV dose of 300 mW-s/cm 2 would be required to reduce the total coliform concentrations <2.2 MPN/100 mL, mainly because of the low UV transmittance (40-63%). The 2.2 MPN/100 mL coliform standard could be met either by a chlorine residual of 5 mg/L with a contact time of 120 min or 10 mg/L for 60 min.

Distribution of surfactant markers in sediments from Santa Monica basin, southern California

The effluent from the Joint Water Pollution Control Plant (Los Angeles, California) and sediment cores collected in a transect from the Los Angeles sewage treatment plants (i.e. Hyperion) to 50–60 km offshore in the Santa Monica Basin, were analysed for fossil hydrocarbons (UCM) and markers of major surfactant classes, namely, linear alkylbenzenes (LAB) (anionic), trialkylamines (TAM) (cationic), and nonylphenols (NP) (non-ionic). Relative concentrations of these markers vary from sewage effluents to sediments according to their stability and hydrophobicity. In this regard, NP were detected only in the sewage effluent, but the more hydrophobic components (e.g. UCM, LAB, and TAM) were abundant even in 900 m water depth samples, with a stratigraphic distribution reflecting variations in their temporal use.

Rare earth elements in sediments off Southern California: a new anthropogenic indicator

The rare earth elements (REE) composition of sediment cores from the San Pedro Shelf (60 m) and the Santa Barbara Basin (588 m) are contrasted. This is a result of anthropogenic inputs beginning in the early 1960s from the Joint Water Pollution Control Plant wastewater outfall 6 km upcurrent from the San Pedro Shelf core. The sources of the light REE enrichment are petroleum-cracking catalysts and their products; these include bottom ash, fly ash, and wastewater from oil-fired power plants and oil refineries

Sludge Management and Disposal Practices of the County Sanitation Districts of Los Angeles (USA)

The County Sanitation Districts of Los Angeles County (Districts) operate a network of six wastewater treatment plants called the Joint Outfall System (JOS) which treat a wastewater flow of approximately 22.3 m3/s (510 mgd). Centralized sludge processing for the JOS is performed at the largest plant in the system, the Joint Water Pollution Control Plant (JWPCP). Sludge is anaerobically digested, dewatered in scroll centrifuges, and either composted and sold to a private company which produces bagged soil amendment products or codisposed with refuse at a site which recovers energy from landfill gas with a 46 net megawatt steam turbine power plant. Future sludge handling will include dehydration followed by incineration for most of the sludge now landfilled. JWPCP accomplishes an environmentally sound and cost effective balance of solids disposal to the air, land and water.

Fundamentals and Application of Windrow Composting

The conventional windrow and aerated windrow processes are viable sludge‐disposal options that produce marketable end products. Both methods entail constructing long parallel rows containing a mixture of sludge cake and amendment and turning the rows frequently with mobile equipment. The conventional process relies on natural ventilation whereas the aerated method uses forced mechanical aeration in addition to natural ventilation. Major drawbacks of the conventional process include excess odor generation and susceptibility to upset from adverse weather. Odor control is a major advantage of aerated windrow composting; these systems, however, are more capital intensive than the simpler conventional systems. The Sanitation Districts of Los Angeles County, California, operate a state‐of‐the‐art conventional windrow facility at the Joint Water Pollution Control Plant in Carson, California. The operation uses two composting steps and two different composting machines. Quality‐control monitoring has shown that the two‐step method provides excellent disinfection and produces a dry product during most of the year. Rainy weather and cool air temperature reduce the drying rate, resulting in the production of a wetter compost during the winter.

Computer Simulation of Ddt Distribution in Palos Verdes Shelf Sediments

Prior to the imposition of effective source‐control measures in 1970, large quantities of DDT were discharged to the Los Angeles County municipal sewer system and, subsequently, to the Pacific Ocean. A fraction of this material accumulated among sediments of the Palos Verdes shelf. While the bulk of the DDT lies 10–40 cm below the sediment surface, its fate may be affected by future wastewater‐treatment decisions at the Joint Water Pollution Control Plant (JWPCP), Los Angeles County's 385‐mgd treatment plant. To assess the impact of impending JWPCP secondary treatment requirements on shelf sediment quality (processes that potentially affect the distribution of chemical tracers among those sediments, including background sedimentation rate), contributions from effluent‐related solids, sediment mixing, and diffusive transport were incorporated in mathematical models. Model projections of surface‐sediment quality at the most heavily contaminated sites are sensitive to projected effluent solids concentrations...