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广州南沙自来水厂总规模100万m3/d,近期设计规模为40万m3/d,水处理采用预处理-常规处理-深度处理工艺,预处理采用预臭氧法,常规处理工艺采用絮凝沉淀池-翻板砂滤池,深度处理工艺采用臭氧-生物活性炭翻板滤池。本文简要介绍了主要构筑物工艺设计参数、设备配置等,并对工艺设计特点进行了总结。 相似文献
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《山西建筑》2021,(9)
山西某污水处理厂原设计规模4.0万m3/d,生物及深度处理采用工艺改良A2/O+接触过滤工艺。依据现状进出水水质数据及2016年总规中期评估数据,重新确定进水水质及处理规模,提标工程规模确定为3.0万m3/d。将原生物池由改良A2/O改造为六段脱氮除磷工艺,即保留原前置反硝化区、厌氧池及缺氧池,将原好氧池划分为第一好氧池、第二缺氧池及第二好氧池。深度处理由接触过滤改造为混凝+沉淀+过滤工艺,即高效反应沉淀池+V型滤池工艺。通过对生物池改造及补齐深度单元短板,实现了出水水质由现状的一级A排放标准提标至化学需氧量(COD)、氨氮(NH3-N)、总磷(TP)三项指标达到地表水环境质量Ⅴ类标准的目标。 相似文献
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合肥供水集团第六水厂设计供水规模60万m3/d,分两期实施,一期土建规模30万m3/d,设备安装按15万m3/d规模分步实施。目前该水厂已正式投入运行,是国内已投入运行的采用高密度澄清池工艺的净水厂之一。本文将对高密度澄清池的净水工艺原理、设计参数、处理设备等作简单介绍。 相似文献
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珠海市南区水质净化厂工程近期设计规模为5万m3/d,远期规模为14万m3/d,采用BOT方式建设,生物处理主体工艺采用UNITANK的改良型工艺—ZT廊道交替池工艺,同步除磷脱氮。本文结合工程设计着重介绍了ZT廊道交替池工艺运行原理及主要生产构筑物的设计情况。 相似文献
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工程概况:工程内容包括污水处理厂一座,污水厂进厂干管355米;设计规模近期5万m3/d,中期10万m3/d,远期25万m3/d,近期占地3.67ha,近期总投资9208.08万元。污水处理工艺:生物除磷脱氮工艺 三级处理。设计单位:中国市政工程西南设计研究院设计一所和成都市市政工程设计院,目前该工程正进行施工图设计。成都市合作污水处理厂(一期)工程@本刊编辑部 相似文献
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Development of biological filter as tertiary treatment for effective nitrogen removal: Biological filter for tertiary treatment 总被引:4,自引:0,他引:4
A biological filtration process applicable to tertiary treatment of sewage for effective nitrogen removal was developed. It consisted of a nitrification filter (Filter 1) and/or a polishing filter with anoxic and oxic parts (Filter 2). A pilot plant set at a municipal sewage treatment plant was operated for 525 d with feed of real sewage. The maximum apparent nitrification rate in Filter 1 in winter was 0.54 kg N/m3- filter-bed d. In Filter 2, the maximum denitrification capacity was 4 kg N/m3 filter-bed d) in winter. SS was stably removed and high transparency water was obtained. The target water quality (SS, BOD, and T-N5 mg/L) was accomplished in winter with the LV of 202 m/d in Filter 2, which corresponds to 0.24 h of HRT. These results proved that this process is compact, stable, convenient to install, and cost effective to build and operate as tertiary treatment to remove nitrogen effectively. 相似文献
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针对原化工废水处理工艺存在的问题,采用生物接触氧化工艺改造原脉冲混凝澄清过滤工艺.改造后的运行结果表明:进水COD为121 mg/L,出水COD为89 mg/L;进水NH3-N为17.44 mg/L,出水NH3-N为10.77 mg/L,对COD和NH3-N的去除率比脉冲澄清工艺分别提高8.55%和30.13%.废水处理后回用于带式机作为冲洗水,脱水车间空气中各项有毒物质的含量未超过国家标准,可节水87.6×104 m^3/a,减少取水费用为36万元/a,具有较好的环境和经济效益. 相似文献
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针对四川省某县城市污水处理厂存在的处理能力不足、厂区用地紧张、出水水质亟需提标等问题,扩容改造工程中将现状改良型氧化沟改造为AAO生化池,现状二沉池改造为MBR膜池,并同时新建一座MBR膜综合车间与之配套,形成新的AAO-MBR深度处理工艺。工程完成后,污水处理能力由3. 0×10~4m^3/d提升至3. 5×10~4m^3/d,实际运行出水COD≤25. 0 mg/L、NH_3-N≤1. 5 mg/L、TN≤8. 0 mg/L,出水水质满足《四川省岷江、沱江流域水污染物排放标准》(DB 51/2311—2016)相关标准。工程总投资为3 589. 2万元,MBR膜系统运行成本为0. 439元/m^3,结合整体厂区运行工况,总处理成本稳定在1. 15~1. 30元/m^3之间。 相似文献
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As A SOLUTION to very high turbidity problems associated with slow sand filters, a new pretreatment method has been developed at University College, London. Initial experiments with a model using a bed of fine sand (effective diameter d. = 0.32 mm) demonstrated that maximum loadings on slow sand filters should not exceed 25 mg/1 at a filtration velocity of 0.2 m/h for satisfactory run times (approximately 5 weeks). However, a literature survey revealed that many tropical rivers may carry several hundred (or even a few thousand) milligrammes per litre of suspended solids during monssoon periods. A need for pretreatment methods is therefore obvious.
A novel process, called pebble matrix filtration, can protect slow sand filters by reducing the suspended-solids concentration of monsoon river waters (containing up to 5000 mg/1) to below 25 mg/1. The paper briefly describes the principles lying behind the treatment process of pebble matrix filtration, and suitable operational parameters are given at flow rates of 0.72–1.56 m/h for tested suspended-solids concentrations of 500, 1000, 2000 and 5000 mg/1 kaolin clay in London tap water, with achieved run times of up to 116 h to head losses not exceeding 1.5 m. Filter cleaning is described by a method called 'drainage and backwash'. 相似文献
A novel process, called pebble matrix filtration, can protect slow sand filters by reducing the suspended-solids concentration of monsoon river waters (containing up to 5000 mg/1) to below 25 mg/1. The paper briefly describes the principles lying behind the treatment process of pebble matrix filtration, and suitable operational parameters are given at flow rates of 0.72–1.56 m/h for tested suspended-solids concentrations of 500, 1000, 2000 and 5000 mg/1 kaolin clay in London tap water, with achieved run times of up to 116 h to head losses not exceeding 1.5 m. Filter cleaning is described by a method called 'drainage and backwash'. 相似文献
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瑶湖污水处理厂一期工程规模为4万m3/d,污水处理采用生活区污水与工业区污水分开预处理+改良型A2/O氧化沟。尾水排放执行GB 18918—2002《城镇污水处理厂污染物排放标准》一级标准的B标准,尾水消毒采用紫外线消毒工艺。污泥处理采用机械浓缩、脱水+外运焚烧工艺。简要介绍了污水厂的设计进、出水水质、工艺流程和主要工艺参数。 相似文献
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福安市城区第二水厂设计规模 1 0万 m3 / d,分二期建设 ,一期工程规模 5万 m3 / d,文中介绍了水厂的净水工艺流程、各净水构筑物的主要参数、设备配置等 相似文献