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首页> 外文会议>Membrane technology 2008 >UPGRADING WASTEWATER FACILITIES WITH MEMBRANE MICROFILTERSTO COMPLY WITH NYC WATERSHED RULES AND REGULATIONSA CASE STUDY: HOBART, NY
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UPGRADING WASTEWATER FACILITIES WITH MEMBRANE MICROFILTERSTO COMPLY WITH NYC WATERSHED RULES AND REGULATIONSA CASE STUDY: HOBART, NY

机译：使用膜微滤器升级废水处理设施，以符合纽约市流水规则和法规案例研究：纽约州霍巴特

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In 2002, the Hobart Wastewater Treatment Plant (WWTP) selected hollow fiber microfiltrationrnas the primary component of a tertiary treatment upgrade. The purpose of the upgrade was tornensure plant compliance with New York City (NYC) Department of Environmental Protectionrn(DEP) Watershed Rules and Regulations. The 180,000 gpd WWTP discharges effluent directlyrninto the West Branch Delaware River, which ultimately feeds the Cannonsville Reservoir, one ofrnsix NYC reservoirs in the Catskill/Delaware watershed. The Village of Hobart was required andrnfunded under provisions in the DEP 1997 Memorandum of Agreement to further treat itsrnextended aeration activated sludge effluent to meet monthly average State Pollution DischargernElimination System (SPDES) permit limits for CBOD5 (25 mg/l), SS (10 mg/l), P (0.5 mg/l), Nrn(8.2 mg/l as NH3), and fecal coliform (200 coliforms/100 ml). The plant was subsequentlyrnupgraded with tertiary treatment, which included coagulation/flocculation, multi-media filtration,rnhollow fiber microfiltration (MF), and low-pressure ultra-violet (UV) disinfection.rnThe microfiltration system (Pall Aria? AP-Series) is comprised of two primary 20-modulernmembrane skids each designed conservatively at a flux rate of less than 23.3 gal/ft2/day (gfd) perrnDEP specifications. Each skid can independently accommodate maximum plant flow for fullrnredundancy. A third auxiliary 7-module membrane skid processes backwash from the mediarnfilters and the primary MF system for greater overall recovery. The membrane system providesrnan absolute barrier for cryptosporidium and coliforms that could potentially pass through thernmultimedia filters. Downstream, the UV system further ensures the elimination of microbialrncontamination and the discharge of high quality effluent into the receiving body. After morernthan 5 years online, the plant has consistently met its SPDES permit requirements.rnThis paper looks at the Hobart WWTP as a case study in the application of membranernmicrofiltration to a NYC Watershed Wastewater Treatment Plant upgrade as well as therneffectiveness and reliability of a membrane filtration system as designed per NYC WatershedrnRules and Regulations.
机译：2002年，霍巴特废水处理厂（WWTP）选择了中空纤维微滤器作为三次处理升级的主要组成部分。升级的目的是确保工厂遵守纽约市（NYC）环境保护部（DEP）流域规则和法规。 180,000 gdd的污水处理厂将污水直接排入特拉华州西部支流，最终向Cannonsville水库供水，Cannonsville水库是Catskill /特拉华流域的六个纽约市水库之一。根据DEP 1997协议备忘录的要求，霍巴特村需要获得资金，以进一步处理其扩展的曝气活性污泥废水，以满足CBOD5（25 mg / l），SS（10 mg / l），磷（0.5 mg / l），Nrn（NH3为8.2 mg / l）和粪便大肠菌群（200大肠菌群/ 100毫升）。随后对该植物进行三次升级处理，包括混凝/絮凝，多媒体过滤，空心纤维微滤（MF）和低压紫外线（UV）消毒。微量滤系统（Pall Aria？AP-Series）是由两个主要的20-Modern膜滑道组成，每个滑道的设计保守，通量率均小于23.3 gal / ft2 / day（gfd）perrnDEP规格。每个滑道都可以独立适应最大的植物流量以实现全冗余。第三个辅助的7模块辅助膜橇处理了中滤器和主MF系统的反冲洗，以实现更高的整体回收率。膜系统为可能潜在通过多媒体过滤器的隐孢子虫和大肠菌群提供了绝对的屏障。在下游，紫外线系统进一步确保消除了微生物污染，并将高质量的废水排放到接收体中。经过5年以上的在线运行，该工厂一直满足其SPDES许可要求。rn本文以霍巴特污水处理厂为例，将膜微滤应用于纽约市流域废水处理厂的升级以及膜滤的有效性和可靠性系统按照纽约市分水岭规则和规定进行设计。

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