Results 11 to 20 of about 15,185 (79)

水解酸化预处理垃圾渗滤液的研究与实践

open access: yesGongye shui chuli, 2012
以唐山市生活垃圾填埋场渗滤液为对象,研究了水解酸化提高新垃圾渗滤液、4a垃圾渗滤液和25a垃圾渗滤液可生化性的可行性。实验和实践结果表明:垃圾填埋年限越长的渗滤液可生化性越差,需要水解酸化的停留时间越长,可生化性提高的幅度越小;当温度为20~35℃时,水解酸化菌的活性较强;水解酸化过程中垃圾渗滤液中的有机氮发生了氨化,释放出氨氮。
唐凤喜, 魏瑞霞, 司军, 刘景良
doaj   +2 more sources

FeSO4对A—O工艺处理印染废水效果的影响

open access: yesGongye shui chuli, 2010
采用在水解酸化池投加FeSO4的方法来对"水解酸化—好氧氧化"(A—O)工艺进行改进。对比了水解酸化池有无投加FeSO4时,A—O工艺系统的运行结果,同时研究了FeSO4投加量对A—O工艺处理效果的影响。结果表明,投加了FeSO4的COD和色度的去除效果均好于未投加FeSO4的,当进水水质为COD 653mg/L、色度480倍、pH=9.2、水解酸化池的反应时间为7h、FeSO4投加量为30mg/L时,去除效果最佳,再经好氧反应器处理7h后,出水水质为COD 88mg/L、色度52倍。
王娟, 范迪
doaj   +2 more sources

硝基苯胺类农药废水处理的研究与实践

open access: yesGongye shui chuli, 2009
采用Fenton试剂氧化-水解酸化-Biofor(一段式生物过滤氧化反应器)工艺处理硝基苯胺类农药废水。结果表明:Fenton试剂氧化CODCr去除率为73.8%,色度去除率为88.7%;水解酸化-Biofor工艺处理CODCr去除率在20%~60%,色度去除率为63.9%,在总进水CODCr≤19 870 mg/L、色度≤20 000倍时,采用Fenton试剂氧化-水解酸化-Biofor工艺,加入适当的冷却水稀释盐分,处理后出水CODCr<100 mg/L、色度<50倍。
朱乐辉   +4 more
doaj   +2 more sources

聚醚桥连二异羟肟酸配合物催化PNPP水解的动力学研究

open access: yes四川大学学报. 自然科学版, 2005
将4种聚醚桥连二异羟肟酸过渡金属铜(II)、锌(II)、钴(II)和锰(II)配合物作为仿水解酶模型催化羧酸酯(PNPP)水解.探讨了聚醚桥连二异羟肟酸过渡金属配合物催化PNPP水解的动力学和机理;提出了配合物催化PNPP水解的动力学模型.结果表明,在25℃条件下随着缓冲溶液pH值的增大,配合物催化PNPP水解速率提高,并表现出好的催化活性.
雷光东   +6 more
doaj  

组合工艺处理涂装废水及其运行调控分析

open access: yesGongye shui chuli, 2021
采取分类预处理及水解酸化+好氧生化+混凝沉淀的组合工艺对某电动车厂涂装废水进行综合处理,出水可实现达标排放。分类物化预处理可有效去除废水中特定污染物,并解决不同工艺所产生废水水质差别较大的问题。将预处理后废水与生活污水混合并经过水解酸化过程,可有效提高废水可生化性,从而实现后续的生化处理。该组合工艺稳定可靠,成本低廉,直接处理费用为2.45元/t。
王慧娟, 张志海, 韩艳艳
doaj   +2 more sources

聚马来酸用于磷系配方

open access: yesGongye shui chuli, 1982
由马来酸酐(顺丁烯二酸酐)聚合、再水解而得的低分子量聚马来酸(简称PMA)是一种阴离子聚电解质[1],它主要是作为阻垢剂用于循环水化学处理的。因为水解不可能非常彻底,聚合物中会保留极少量未水解的马来酸酐,因而它又名水解聚马来酸酐。
鲍其鼐
doaj   +2 more sources

利用铝箔废酸液制备聚合硫酸铁铝的工艺研究

open access: yesGongye shui chuli, 2019
以铝箔酸洗废液为原料,通过酸溶-碱化-水解熟化工序制备聚合硫酸铁铝(PAFS)。用XRD、SEM对产品结构进行表征,并进行净水实验。实验结果表明,在酸浓度为9 mol/L、n(Fe3+):n(Al3+)为4:1、反应温度为110℃、反应时间为4.5 h、碱化度0.6、水解温度为70℃、水解时间4 h、熟化温度为50℃、熟化时间8 h的条件下,制备的聚合硫酸铁铝液体产品呈无定型、多晶体矿混合聚合物结构。污水净化结果表明,除浊率与现有聚合硫酸铁(PFS)的效果相当 ...
张骁   +7 more
doaj   +2 more sources

水解酸化--接触氧化工艺处理松脂加工废水

open access: yesGongye shui chuli, 2007
通过中和-气浮-水解酸化-接触氧化工艺对松脂加工废水进行处理,废水的CODCr由2368mg/L降至93mg/L,去除率达到95%以上,其余指标均达到污水一级排放标准。试验结果表明,采用厌氧折流板反应器(ABR)能够很好地控制废水水解酸化的进程;接触氧化段较高的溶解氧对难降解的松脂加工废水有较好的处理效果。
冼萍, 潘正现, 邓清华, 王孝英
doaj   +2 more sources

水解酸化——混凝沉淀工艺对活塞环生产综合废水的预处理试验研究

open access: yesGongye shui chuli, 2009
采用水解酸化—混凝沉淀工艺,对活塞环生产综合废水进行预处理。研究了水解酸化时间、混凝沉淀药剂类型及其投加量等因素对废水COD去除的影响。结果表明,该组合工艺将废水的COD由9656mg/L降至3081.2mg/L,COD去除率达到67.8%,提高了废水的可生化性,并确定了水解酸化的最佳水力停留时间以及混凝剂的最佳投药比,为活塞环工业废水的大规模处理提供了应用参数。
印华斌   +3 more
doaj   +2 more sources

叶酸中间体生产废水处理的应用研究

open access: yesGongye shui chuli, 2018
江西某精细化工厂采用铁碳微电解-Fenton氧化-混凝沉淀-水解酸化-A/O-曝气生物滤池联合工艺处理叶酸中间体生产废水。运行结果表明:铁碳微电解工序的COD去除率为41%,氨氮去除率为24%;Fenton-混凝工序的COD去除率为53%,氨氮去除率为48%;预处理废水再经过水解酸化-A/O-曝气生物滤池深度处理,出水稳定,COD﹤500 mg/L,氨氮﹤35 mg/L,达到宜春盐化基地污水处理厂的要求。工艺处理成本为3.87元/m3。该工艺具有处理效果好、经济效益高等特点 ...
彭望峰, 朱乐辉
doaj   +2 more sources

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