Results 11 to 20 of about 531 (78)

生物铁强化活性污泥法处理不同性质企业联片废水

open access: yesGongye shui chuli, 2006
江南某城镇工业园区集中了众多的医药、化工、磁性材料、染料、电镀等企业。这些企业所用的原料不同,生产工艺不同,产生的废水也不同。其中很多是高污染难处理的废水。该工业园区推行了一套先由企业进行一级预处理,然后进入联片污水厂集中处理的管理模式,采用先进的A/O2(生物铁强化活性污泥法+生物接触氧化法)的废水处理工艺,该处理系统经一年多的运行表明,COD、BOD、NH3-N的去除率高,出水达到GB 8978-1996《污水综合排放标准》一级标准,为工业园区联片废水处理探索了一条新路。
王方园, 盛贻林
doaj   +2 more sources

工业园区污水处理厂SBR系统提高脱氮效果实例

open access: yesGongye shui chuli, 2020
合肥某工业园区污水处理厂集中处理园区企业排放的工业废水及少量生活污水,进水具有BOD5低、NH4+低、TN高的特点,采用气浮+水解酸化+SBR+气浮滤池的主体工艺,TN达标排放难度大。在原工艺基础上,对SBR系统实施技术改造及工艺参数优化,总氮去除率由30.2%提高到75.1%,TN排放指标稳定 < 15 mg/L。
李卓军
doaj   +2 more sources

滨海工业园区初期雨水MBBR工艺预处理研究

open access: yesGongye shui chuli, 2021
针对沿海工业园区初期雨水含盐量较高,不利于常规生化及难以快速启动的问题,开展改性MBBR填料制备、盐度梯级驯化的研究。研究表明,采用盐度梯级驯化的反应器MBBR稳定运行在第13天完成,比其他挂膜方式快8~10 d。16S rDNA的焦磷酸测序表明R3中球衣菌属高度丰富。因此,盐度梯级驯化是高盐雨水快速启动的有希望的替代方法,使整个系统具有耐冲击、耐盐、启动快等特点,有效降低临港工业园区人工湿地冲击负荷风险。
王娜, 张军港, 姚晓然, 丁晔
doaj   +2 more sources

Fenton+BAF工艺在化工园区尾水深度处理中的应用

open access: yesGongye shui chuli, 2018
关键词: Fenton氧化, 曝气生物滤池 ...
潘兴华, 蔡国飞
doaj   +2 more sources

某石化高新技术工业园区污水厂的设计与运行

open access: yesGongye shui chuli
某工业园区以石油化工、化纤纺织、精细化工、新能源和化学新材料为主要产业,针对园区外排水的水质、水量特点,采用“预处理+水解酸化+A2O-MBR+臭氧催化氧化+曝气生物滤池+反硝化滤池”处理工艺处理该废水,经过一年的稳定运行,出水水质均达到《城镇污水处理厂污染物排放标准》(GB 18918—2002)一级A排放标准。园区污水厂总投资为23 500万元,直接运营费用约为3.8元/m3。该工程的工艺流程、设计参数及运营情况可供相关工程参考。
李林宝, 曾宇, 李志能
doaj   +2 more sources

臭氧与电化学氧化在精细化工废水回用处理中的应用

open access: yesGongye shui chuli, 2023
在干旱地区通过新建污水处理工程将精细化工废水处理至达到园区绿化、纤维作物用水及生态林地绿化用水等多种回用水水质标准要求,在防止废水污染环境的同时可为当地提供辅助水源。针对甘肃省河西地区某园区精细化工废水可生化性极差的特点,设计利用臭氧氧化将废水B/C从0.12提升至0.33,为生物处理创造条件,之后经过生化及深度处理后采用电化学氧化进一步去除难降解有机物,使出水COD低于30 mg/L。电化学氧化对出水达标起到了保障作用,其对难降解有机物去除率达75%以上,其中对甲苯、挥发酚、胺类的去除率分别为91 ...
蒋利鑫, 吴楠, 王鹏堂, 马胜峰
doaj   +2 more sources

Pollution characteristics of PM2.5 in Taizhou, Zhejiang Province(台州市不同功能区环境空气PM2.5的污染特征研究)

open access: yesZhejiang Daxue xuebao. Lixue ban, 2017
2015年7月至2016年3月在台州市采集504个PM2.5样品,利用电感耦合等离子体发射光谱仪和原子荧光光度计分析样品中的19种无机元素,利用离子色谱和热光碳分析仪分别分析8种水溶性离子和2种碳组分有机碳(OC)和元素碳(EC)的质量分数,研究不同功能区环境空气PM2.5及其化学组分的污染特征.结果表明,台州市环境空气PM2.5年均质量浓度为(45.3±20.1) µg • m-3,季节变化规律为冬季>春季>秋季>夏季,空间变化规律为工业园区>商住区>自然保护区.19种无机元素占PM2.5总量的9 ...
TAOZhihua(陶志华)   +8 more
doaj   +1 more source

台湾地区国家公园志工管理体系的借鉴意义 ——以太鲁阁国家公园为例

open access: yes野生动物学报, 2014
志工群体是自然保护及管理的重要辅助力量。我国台湾地区的国家公园系统自应用志工制度以来,有效借助社会人力资源缓解工作人员紧张,提供了良好的游憩和环境教育服务。本文借助资料搜集、实地调查、专员访谈等方法,分析了台湾地区国家公园志工管理体系的运作模式,重点讨论了太鲁阁国家公园的志工类别、招募办法、教育培训、执勤服务、管理考核、奖励及福利权益等内容,从法律化、组织化及制度化探讨其对我国大陆地区自然保护区志愿者工作的启示和借鉴意义。
戴胡萱 李俊鸿 宗 诚 马建章
doaj  

高浓度活性污泥法处理化工园区综合废水研究

open access: yesGongye shui chuli, 2009
介绍了高浓度活性污泥法处理化工园区综合废水的现场实验。探讨了高浓度活性污泥法在不同污泥CODCr负荷以及不同进水CODCr下对化工园区综合废水的CODCr的去除率及其污泥性状。实验表明,在0.30~0.40kg/(kg·d)的污泥CODCr负荷区间内,CODCr的去除率可达90%以上;在一定范围内较低的进水CODCr对进一步降低出水CODCr帮助不大,反而会降低系统对污染物的去除率。
王颖哲, 陶博, 于水利
doaj   +2 more sources

某创业孵化园重金属废水零排放工程案例

open access: yesGongye shui chuli
某创业孵化园以生产手机(平板)中框、手表外壳、模具等产品为主,园区部分生产废水中含有铬、镍等重金属离子。单独收集园区重金属废水,对其水质特点进行分析,设计开发了“两级混凝沉淀-电Fenton氧化-碳滤-砂滤-超滤-两级反渗透-三效蒸发”的组合工艺,详细介绍了该工艺主要设备及运行参数,并采用此工艺对重金属废水进行处理。经过一段时间的调试运行,该组合工艺的出水水质达到园区回用水要求,可直接用于园区产品生产用水或者用于制备纯水,实现废水零排放。该项目处理规模1 300 m3/d,总投资(不包含土建费用)3 ...
张瑜倩   +6 more
doaj   +4 more sources

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