共查询到19条相似文献，搜索用时 125 毫秒
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“加压气浮＋水解酸化＋SBR”工艺在中药制药废水处理中的应用 总被引：1，自引：0，他引：1
初征 《辽宁科技学院学报》2009,11(2):46-47
采用“加压气浮＋水解酸化＋SBR”工艺处理制药厂废水,处理量为3000m^3／d,CODcr、BOD5、SS去除率分别为97．2％、99．3％和98％。出水均达到国家污水综合排放一级标准。 相似文献
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介绍了化学法处理电镀废水的应用实例。通过对废水中污染物去除效果的分析,表明化学法处理电镀废水是行之有效的,而用pH／ORP计控制好废水处理中的化学反应是稳定运行的关键。 相似文献
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焦化废水脱氮技术有物理化学法、生物化学法等.生物化学法是较为经济、实效、无污染转移、操作简便易掌握的典型工艺技术.生物脱氮是利用微生物的生物化学作用,将废水中的氨氮经硝化和反硝化反应,转变成为无害的氮气而除去.目前,国内焦化废水处理采用的生物化学脱氮工艺的主要流程有“缺氧—好氧(A—O)”法,以及在此工艺基础上开发的“厌氧—缺氧—好氧(A—A—O)”法.此外,“缺氧—好氧—好氧(A—O—O)”法也是“A—O”工艺的延伸,同属于以“缺氧-好氧”为基本流程的生物脱氮工艺. 相似文献
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焦化废水脱氮技术有物理化学法、生物化学法等.生物化学法是较为经济、实效、无污染转移、操作简便易掌握的典型工艺技术.生物脱氮是利用微生物的生物化学作用,将废水中的氨氮经硝化和反硝化反应,转变成为无害的氮气而除去.目前,国内焦化废水处理采用的生物化学脱氮工艺的主要流程有“缺氧一好氧(A—O)”法,以及在此工艺基础上开发的“厌氧-缺氧-好氧(A—A—O)”法.此外,“缺氧-好氧-好氧(A—O—O)”法也是“A-O”工艺的延伸,同属于以“缺氧-好氧”为基本流程的生物脱氮工艺. 相似文献
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Fenton试剂是H2O2和Fe＋混合得到的一种强氧化剂，近十几年来在废水处理中的应用正得到越来越多的关注。但是单独使用Fenton试剂处理废水成本会很高，而且有机物的矿化程度不高，而更有效的方法是将Fenton试剂与其他技术联合处理废水。本文系统地介绍了电-Fenton法、光-Fenton法、超声--Fenton法、吸附-Fenton法、微波Fenton法、混凝-Fenton法等在废水处理中的研究和应用现状，并展望了今后的重点研究方向。 相似文献
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清河县某洗毛废水处理工程工艺分析 总被引：1，自引：0，他引：1
洗毛废水是高浓度有机废水,处理难度大。本文重点针对某洗毛废水处理工程应用实例的工艺、运行成本等方面进行了综合分析。最后,本文为该工程实例做了总结与建议。 相似文献
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投药气浮＋IC＋A/O工艺处理淀粉废水 总被引：1，自引：0，他引：1
玉米淀粉生产废水主要成分为淀粉、糖类、蛋白质、纤维素等有机物质,废水有机物含量高：CODcr=5500mg/L,BOD5=2900mg/L,SS=1000mg/L。采用投药气浮＋IC＋A/0组合工艺处理此类废水,气浮分离技术回收植物蛋白饲料,IC工艺回收利用沼气,出水水质能达到GB8978-1996一级排放标准,具有较好的环保效益和一定的经济效益。 相似文献
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针对高校和科研单位实验室废水排放规律性差,所含污染物成分复杂等特点,以某石油高校实验室为研究对象设计的废水处理工艺分为物化和生化两大部分。物化部分是对排放的实验室废水依次经过格栅、调节沉淀池、吹脱浮油塔、湿式氧化、沉淀池;生化部分是将校园生活废水经格栅后与经物化处理的实验室废水混合,再经过A2/O工艺和滤罐后达标排放。其中调节沉淀池是调节池、中和池和初沉池的结合体,减少了占地面积;吹脱浮油塔是由吹脱塔改进而来,吹脱出的可燃气点燃后可为湿式氧化部分供热,有毒有害物质也被消除。 相似文献
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Electrocatalysis method for wastewater treatment using a novel beta-lead dioxide anode 总被引：1，自引：1，他引：1
A novel β-PbO2 anode modified with fluorine resin was developed for typical pollutant electrocatalytic degradation and wastewater treatment. Various operating parameters such as applied voltage (3.5-10.5 V), pH (2-6), salinity of the electrolyte (0.5-2 g／L K2SO4) and initial phenol concentration (100-400 mg／L) were investigated to explore the electrocatalytic ability of the anode by taking phenol as sample. A preliminary study on dyeing wastewater treatment by this method indicated that the biodegradability could be increased to suit subsequent biological treatment. The stability of the anode has been proved to be high against acidity. The anode showed promising application for treatment of wastewater, especially of high salinity and high acidity wastewater. 相似文献
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分析污水处理设施的运行成本，是用经济手段管理环境的基础。分析了五家造纸厂的污水处理设施的运行成本。对造纸行业构建了污水COD削减费用函数，提出了相关结论与建议。 相似文献
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ZHAO Li-jun MA Fang GUO Jing-bo ZHAO Qing-liang 《浙江大学学报(A卷英文版)》2007,8(11):1831-1838
In solving the deterioration of biological treatment system treating petrochemical wastewater under low temperatures, bioaugmentation technology was adopted by delivering engineering bacteria into a pilot-scale two-stage anoxic-oxic (A/O) process based on previous lab-scale study. Experimental results showed that when the concentrations of COD and NH4 -N of the influent were 370~910 mg/L and 10~70 mg/L, the corresponding average concentrations of those of effluent were about 80 mg/L and 8 mg/L respectively, which was better than the Level I criteria of the Integrated Wastewater Discharge Standard (GB8978-1996). According to GC-MS analysis of the effluents from both the wastewater treatment plant (WWTP) and the pilot system, there were 68 kinds of persistent organic pollutants in the WWTP effluent, while there were only 32 in that of the pilot system. In addition, the amount of the organics in the effluent of the pilot system reduced by almost 50% compared to that of the WWTP. As a whole, after bioaugmentation, the organic removal efficiency of the wastewater treatment system obviously in- creased. 相似文献
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环境管理有多种手段,如适合社会经济发展,将能确保实际操作的效率。我国目前实行以污染物排放标准为基础,辅之以排污收费等多种经济形式结合的混合管理手段,在市场经济高速发展的现状表现出一定的局限性。本文以粤西某石化企业废水治理情况为例,从环境标准及排污收费标准两者与企业个体治理费用的关系出发,运用环境计量经济模型从厂级污染控制的层面上探讨了这两种环境管理手段的有效性,以期为政府制订环境政策、企业政策、宏观污染治理和进行环境管理提供参考,并可为企业环境经济效益的估算、区域工业废水控制规划和环境战略的研究等领域提供依据。 相似文献
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针对密集多通道无机陶瓷膜处理汽车发动机乳化液废水开展了中试试验,并通过工程检验,获知该类废水处理的适宜设计参数为:膜面流速取4-6 m/s,压力控制为0.3 MPa,温度控制在45℃左右;在相应的操作条件下,COD、含油量等均达到了后续污水处理的水质要求,效果明显。 相似文献
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A novel β-PbO2 anode modified with fluorine resin was developed for typical pollutant electrocatalytic degradation and wastewater treatment. Various operating parameters such as applied voltage (3.5–10.5 V), pH (2–6), salinity of the electrolyte (0.5–2 g/L K2SO4) and initial phenol concentration (100–400 mg/L) were investigated to explore the electrocatalytic ability of the anode by taking phenol as sample. A preliminary study on dyeing wastewater treatment by this method indicated that the biodegradability could be increased to suit subsequent biological treatment. The stability of the anode has been proved to be high against acidity. The anode showed promising application for treatment of wastewater, especially of high salinity and high acidity wastewater. 相似文献
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SBR法处理模拟印染废水的实验研究 总被引：1，自引：0，他引：1
采用实验室规模的序批式活性污泥曝气反应器（SBR）工艺处理模拟的印染废水．通过实验分析了不同曝气时间、进水浓度、静沉时间与SBR处理效果之间的关系,确定了SBR法处理中低浓度的印染废水的最佳运行参数．实验结果表明,在SBR的曝气时间为8h,沉淀时间为1h的条件下,且废水进水pH值为7．5～8．6,COD—cr为8901080mg／L、氨氮为13～20mg／L、色度为350倍左右时,该工艺对CODcr、氨氮、色度等均有很好的去除效果,经处理的印染废水COD、氨氮、色度去除率分别为50％～70％、40％～67％、20％．该法具有投资少、运行费用低、操作简单的特点． 相似文献
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To explore the applicability of anoxic-oxic （A/O） activated sludge process for petrochemical wastewater treatment, the relationship between bacterial community structure and pollutants loading/removal efficiencies was investigated by gas chromatograph-mass spectrometry （GC-MS）, polymerase chain reaction-denaturing gradient gel electrophoresis （PCR-DGGE） and other conventional techniques. It showed that when the concentrations of the influent chemical oxygen demand （COD） and ammonia nitrogen （NH4＋^-N） were 420-560 mg/L and 64-100 mg/L, respectively, the corresponding average effluent concentrations were 160 mg/L and 55 mg/L, which were 1.6 and 2.2 times higher than those of the national standards in China, respectively, demonstrating the inefficient performances of A/O process. Analysis of GC-MS indicated that refractory pollutants were mainly removed by sludge adsorption, but not by biodegradation. PCR-DGGE profile analysis suggested that the biological system was species-rich, but there was apparent succession of the bacterial community structure in different locations of the A/O system. Variations of bacterial community structure and pollutant loadings had obvious influences on pollutants removal efficiencies. Thus, A/O process was inapplicable for the treatment of complicated petrochemical wastewater, and strategies such as the reinforcement of pre-treatment and two-stage A/O process were suggested. 相似文献
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吸附法处理含铅废水的研究 总被引：1，自引：0，他引：1
用天然陶土、池塘底泥吸附处理含铅模拟废水探究吸附剂用量，吸附时间，废水酸度以及铅离子初始浓度等对铅离子去除率的影响，实验表明，方法简便，去除率高，易于推广。 相似文献