出口分散式一体化污水处理设备

编辑:出口污水处理设备 来自:https://www.zqwscl.com /日期:2023-04-29 10:29 / 人气:

        分散式生活污水具有分散性强、污染面广、水质较差等特点,对污水处理技术有了更高的要求。中侨启迪在研究分散式生活污水处理及技术的现状后,提出了出口分散式一体化污水处理设备的运营,为生活污水治理提供更多的建议。


        1分散式生活污水处理技术的现状
        由于农村的居住比较分散,经济发展水平比较落后,农村收集、排放有关配套设备不足,约有九成以上的村庄没有专门的排放和收集设置。根据国家有关部门的调查,2010 年底,仅有 6% 的村庄有成熟的喷淋排水和污水处理体系。从全国范围来看,农村的污水处理率非常低,山东地区的污水处理率为 10%,东北地区的污水处理率为 4%,西北地区的处理率为 1% 左右,上海、江苏、浙江地区的污水处理率比较高,可以达51%、21%、33%。农村污水的处理率低,治理的覆盖率也比较差,造成污水直接排入周边土壤、地下水、河流等区域造成非常严重的危害,一些农村地区生活废水的排放量已经超过了畜牧业和农业的排放量,成为主要的非点源的污染源。农村的生活污水不经过处理直接排放已经成为农村人居环境的主要威胁。根据农村分散式污水排放的特点,需要选择合适的处理模式,才能从本质上解决农村污水对周边水环境的危害问题。
        分散式处理模式是将每个小区域都进行单独的处理,或者将很大的区域划分为若干个小的单元,每个小单元都独立运行,有单独的建设处理设备,单独的设计和管网体系,相互独立没有交叉,将经济利益和环境效益做到最大化,同时实现较好的处理效果。分散处理模式的特点是管线简单、处理方法比较灵活、埋线比较浅,施工工艺简单,对于农村分散式的人口不密集、地形比较简单、规模不大、污水难收集地区非常适用。根据农村的分散式的特点、农村自然环境以及经济条件等因素综合考虑,使用分散式处理模式非常适合。


        2、中侨启迪出口分散式一体化污水处理设备的运用
        分散式生活污水一体化处理是将不同的单元进行串联,这样可以实现整体的运行需求,同时可以将装置进行现场安装 。一体化污水处理的顺利实施,需要具备占地面积小、结构紧凑、使用时间长、处理效果好、安全可靠等诸多优势,在较小规模的污水处理厂中运用得比较多。
        (1)净化槽
        净化槽中包含消毒工艺、沉淀、接触氧化等,具体的处理工艺是污水到沉淀分离槽后开始预处理,初步去除大颗粒的物质以及悬浮物,这样就可以为后面的污水处理奠定良好的基础,预过滤槽中的填料的表面应该生长厌氧生物膜,可以去除污水中溶解性有机物;在曝气槽中完成反冲洗、氧化、过滤截留等反应,净化槽中还有沉淀槽,在实际运行中可以实现污水的沉淀。在沉淀槽的末端设置固体氯料消毒盒,出水后先经过消毒盒,可以将处理后污水进行充分消毒,可以明显提高水质。净化槽经过污水处理,处理规模通常情况下是 1-30m3/d,出水水质较好,可以达到污水处理后的出水水质标准,将处理后的水直接向池塘或者农田中排放。污水的处理工艺是先进入沉淀分离池中,然后再到接触曝气池中,再进消毒池中,最后将水排出。
        (2)A3/O 移动床生物膜反应器
        A3/O 移动床生物膜反应器的设置是根据移动床中的生物膜反应力,在反应器中包含缺氧区、厌氧区、好氧区和预脱硝区,可以优化污泥回流系统,不断优化硝化液回流结构的布局,这就显示了活性污泥和生物接触氧化法的优点。当反应器中处于缺氧的状态,预脱硝区可以将回流污泥和进水内的硝酸盐和氧气充分混合,有效去除污染物,保证污水经过这个区域出水时达到相关标准,这样才能确保在特定的环境中聚磷菌将释放磷,也可以将好氧池中的吸磷水平提高到很高的水平。实现硝化液回流到缺氧池之中,可以从整体上强化脱氮能力,从根本上增强氮和氨的去除效果。运用 A3/O 移动床生物膜反应器的装置进行污水处理,每天可以处理 15-200m3 的水量 , 出水的水质可以达到很高的水平,稳定后的污水处理后可以达到 A 级的排放标准,可以实现对户级、村级要求较高的污水处理。
        (3)MBR一体化污水处理设备
        MBR 的工艺是将活性污泥生物处理工艺和膜分离工艺结合在一起的新型工艺。MBR 在具体的运行中没有污泥沉降区,而使用中空膜,可以避免水中的污泥流失,生化池中活性污泥的浓度可以高达 8 000-12 000mg/L,可以有效降解污染物。MBR 工艺的优点有:泥水分离比较好,使用膜过滤技术可以截留很多细菌和有机污染物,提高污染物的处理效率。活性污泥和污水在生物池中充分混合,提高污泥的活性和反应程度,稳定出水的水质。膜截留作用对硝化细菌的生长具有积极的作用,反应池中进行的反硝化、硝化反应可以总体提高工艺中的除磷和脱氮的总体水平。
 

        总之,随着中侨启迪一体化污水处理设备的更加完善,其在水环境治理中的应用也会更加广泛。如果您想了解更多关于出口分散式一体化污水处理设备,可以联系中侨启迪的客服或者到厂参观。


        The ted domestic sewage has the characteristics of strong dispersion, wide pollution and poor water quality, and has higher requirements for sewage treatment technology. After studying the current situation of decentralized domestic sewage treatment and technology, we put forward the operation of export decentralized integrated sewage treatment equipment to provide more suggestions for domestic sewage treatment.
        1. Current status quo of distributed domestic sewage treatment technology
        Due to the relatively scattered rural housing, the level of economic development is relatively backward, the rural collection and emission related equipment is insufficient, about more than 90% of the villages do not have special emission and collection setting. At the end of 2010, only 6 percent of the villages had mature sprinkler drainage and sewage treatment systems. From the national perspective, the rural sewage treatment rate is very low, the sewage treatment rate in Shandong is 10%, northeast China is 4%, northwest China is about 1%, Shanghai, Jiangsu and Zhejiang is relatively high, which can reach 51%, 21% and 33%. The treatment rate of rural sewage is low, and the coverage rate of treatment is relatively poor, resulting in the direct discharge of sewage into the surrounding soil, groundwater, rivers and other areas, causing very serious harm. The discharge of domestic wastewater in some rural areas has exceeded the discharge of animal husbandry and agriculture, becoming the main source of non-point sources. The direct discharge of the rural domestic sewage without treatment has become the main threat to the rural living environment. According to the characteristics of rural decentralized sewage discharge, it is necessary to choose the appropriate treatment mode to solve the harm of rural sewage to the surrounding water environment in essence.
        Distributed processing mode is to each small area for separate processing, or a large area is divided into several small units, each small unit run independently, has a separate construction of processing equipment, separate design and network system, independent of each other without cross, to maximize economic benefits and environmental benefits, at the same time achieve better processing effect. The decentralized treatment mode is characterized by simple pipeline, flexible treatment method, relatively shallow buried line, simple construction technology, which is very suitable for rural areas with undense population, simple terrain, small scale and difficult to collect sewage. According to the characteristics of rural decentralized, rural natural environment and economic conditions and other factors, the use of decentralized treatment mode is very suitable.
        2. Application of decentralized integrated sewage treatment equipment
        The integrated treatment of distributed domestic sewage is to connect different units in series, so that the overall operation requirements can be realized, and the device can be installed on site. The smooth implementation of integrated sewage treatment needs to have many advantages such as small area, compact structure, long use time, good treatment effect, safety and reliability, which are more used in small-scale sewage treatment plants.
        (1) Purification tank
        The purification tank contains disinfection process, precipitation, contact oxidation, etc. The specific treatment process is pretreatment after the sewage precipitation separation tank, and preliminary removal of large particles of material and suspended matter, which can lay a good foundation for the sewage treatment, the packing surface in the prefilter tank should grow anaerobic biofilm, can remove dissolved organic matter in sewage; complete the backwashing, oxidation, filtration retention reaction, purification tank, sewage precipitation can be realized in the actual operation. A solid chlorine disinfection box is set at the end of the sedimentation tank. After the effluent, go through the disinfection box, and the treated sewage can be fully disinfected, which can obviously improve the water quality. After the purification tank is treated with sewage, the treatment scale is usually 1-30m3 / d, and the effluent quality is good, which can meet the effluent quality standard after sewage treatment, and the treated water is directly discharged directly into the pond or farmland. The treatment process of sewage is to enter the sedimentation separation tank, then to the contact aeration tank, and then into the disinfection tank, and finally discharge the water.
        (2) A3 / O moving bed biofilm reactor
        The setting of A3 / O mobile bed biofilm reactor is based on the biofilm reaction force in the mobile bed, which includes anoxic, anaerobic, aerobic and pre-denitrification zone in the reactor, which can optimize the sludge reflux system and continuously optimize the layout of the nitrification liquid reflux structure, which shows the advantages of activated sludge and biological contact oxidation method. When the reactor in a state of hypoxia, the denitration area can be reflux sludge and water of nitrate and oxygen fully mix, effectively remove pollutants, ensure sewage through the area water standards, so as to ensure that the phosphorus in a specific environment will release phosphorus, also can good oxygen pool in the phosphorus level to a high level. The reflux of nitrification liquid into the hypoxic pool can enhance the overall ability of nitrogen removal, and fundamentally enhance the removal effect of nitrogen and ammonia. The use of A3 / O mobile bed biofilm reactor device for sewage treatment, can treat 15-200m3 of water every day, the water quality can reach A high level, stable sewage treatment can reach the A level discharge standard, can realize the sewage treatment with high requirements for household level and village level.
        (3) MBR integrated sewage treatment equipment
        The MBR process is a new process combining the activated sludge biological treatment process and the membrane separation process. There is no sludge settlement area in the specific operation of MBR, and the use of hollow film can avoid the loss of sludge in the water. The concentration of activated sludge in the biochemical tank can be as high as 8 000-12 000mg / L, which can effectively degrade pollutants. The advantages of MBR process are: good water separation, the use of membrane filtration technology can intercept many bacteria and organic pollutants, and improve the treatment efficiency of pollutants. Activated sludge and sewage are fully mixed in the biological tank to improve the activity and reaction degree of sludge and stabilize the quality of effluent. Membrane interception has a positive effect on the growth of nitrifying bacteria, and the denitrification and nitrification reactions in the reaction pool can generally improve the overall level of phosphorus removal and nitrogen removal in the process.
        In short, with the improvement of the integrated sewage treatment equipment, its application in water environment treatment will be more extensive. If you want to know more about the export of decentralized integrated sewage treatment equipment, you can contact the customer service of the Chinese enlightenment or visit the factory.


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