河南外贸出口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：2023-12-19 13:15 / 人气：
该设备在应用时，应保证进水的COD≤400mg/L，BOD5≤150mg/L，总氮≤50mg/L，氨氮≤45mg/L，总磷≤4.5mg/L，SS≤200mg/L，进水pH 控制在6~9范围内。
下面是河南外贸出口一体化污水处理设备的介绍。
技术简介
1、技术原理
河南外贸出口一体化污水处理设备的主要原理如下所述：
图1 工艺主要功能区
（1）缺氧区——反硝化脱氮。部分原水与硝化回流液混合进入缺氧反应区，反硝化菌以污水中易降解有机物为碳源，将硝化回流液中的硝酸盐和亚硝酸盐还原为氮气并从水中溢出，实现污水脱氮。
（2）厌氧区——强化除磷。硝化液先经缺氧区处理，降低溶解氧和硝酸盐浓度，再进入厌氧反应区。部分原水直接进入厌氧区补充碳源，聚磷菌吸收小分子有机物并充分释磷，为好氧摄磷做准备。
（3）好氧区——降解有机物、强化硝化、高效摄磷。在好氧区，好氧微生物将水体中残留的有机物通过新陈代谢降解；同时聚磷菌在好氧条件下进行高效摄磷，将磷从水体中分离；水中的氨氮在好氧区被硝化菌氧化为硝态氮。好氧区部分硝化液通过气提装置回流至缺氧区进行反硝化脱氮。
（4）膜分离区——强化泥水分离。污水从好氧反应区进入膜分离区，膜分离区设置有MBR膜，对废水进行固液分离，产水泵排出清水。膜分离区设置有气提装置，将高溶解氧的污泥提升至好氧区，补充好氧区溶解氧、保持系统生物量稳定。
2、工艺路线
污水通过管网收集至前端沉砂井，经格栅预处理后进入调节池，然后经过调节池提升泵提升至一体化智能污水处理设备内的预混合区，进行充分混合。水体自预混合区底部过水口流出后，依次流经缺氧区、厌氧区、好氧区、MBR区，最终消毒外排。设备运行时部分混合区出水直接进入厌氧区，好氧区的泥水混合液则回流至缺氧区。MBR区的部分污泥回流至好氧区，部分污泥则排至污泥池内进行浓缩，浓缩污泥由环卫车定期外运至污泥处理区进行处理。
图2 工艺路线图
3、应用效果
污水经一体化污水处理设备处理后，其水质可达到《城镇污水处理厂污染物排放标准》（GB18918—2002）的一级A标准。
技术特点
河南外贸出口一体化污水处理设备
AAO/MBR工艺虽然对污水中的COD、氨氮具有较好去除效果，但由于好氧区混合液回流冲击了缺氧区的缺氧环境，其脱氮除磷能力无法满足水处理要求。对AAO/MBR工艺进行改进，在保留原有COD去除效果的同时，强化其脱氮除磷能力，可极大提高该工艺的实用性。山东中侨启迪环保装备有限公司经过对倒置AAO、MBR多年的研究和实践，开发出了一体化污水处理设备。该设备集缺氧、厌氧、好氧、MBR分离于一体，设备中倒置AAO工艺避免了溶解氧、硝酸盐对释磷菌的负面影响，分段进水模式则解决了厌氧区碳源不足的问题。
Integrated sewage treatment equipment for sewage in residential areas, including rural, township, market, villas, etc.; sewage in municipal commercial district, including community, hotel, entertainment places, scenic spots, farmhouse; sewage in public transportation places, including railway station, bus station, passenger terminal and high-speed service area.
When the equipment is applied, the water inlet COD 400 mg/L, BOD 5150 mg/L, 50 mg/L total nitrogen, ammonia nitrogen 45 mg/L, total phosphorus 4.5 mg/L, SS 200 mg/L, and the water inlet pH shall be controlled within the range of 6~9.
The following is the introduction of Henan foreign trade export integrated sewage treatment equipment.
Technical profile
1. Technical principles
The main principle of Henan foreign trade export integrated sewage treatment equipment is as follows:
(1) —— denitrification in the hypoxic zone. Part of the raw water is mixed with the nitrification reflux liquid into the hypoxia reaction area. The denitrifying bacteria take the easily degradable organic matter in sewage as the carbon source, and reduce the nitrate and nitrite in the nitrification reflux liquid into nitrogen and overflow from the water to achieve nitrogen removal in sewage.
(2) —— -enhanced phosphorus removal in the anaerobic area. Nitrification solution was first treated in the hypoxic area to reduce the concentration of dissolved oxygen and nitrate, and then entered the anaerobic reaction zone. Part of the raw water directly enters the anaerobic area to supplement the carbon source, and the polyphosphorus bacteria absorb small molecules of organic matter and fully release phosphorus to prepare for aerobic phosphorus consumption.
(3) aerobic area —— degrades organic matter, strengthens nitrification, and efficient phosphorus collection. In the aerobic area, aerobic microorganisms degrade the residual organic matter in the water through metabolism; meanwhile, the polyphosphorus bacteria take efficient phosphorus collection under aerobic conditions to separate phosphorus from the water; the ammonia nitrogen in the water is oxidized by nitrifiers in the aerobic area. Part of the nitrification solution in the aerobic zone is returned to the hypoxic area through the gas lifting device for denitrification and nitrogen removal.
(4) Membrane separation area —— reinforced muddy water separation. Sewage enters the membrane separation zone from the aerobic reaction zone, which is equipped with MBR membrane to conduct solid-liquid separation of waste water, and discharge clean water from the production pump. The membrane separation area is equipped with a gas lifting device to lift the sludge with high dissolved oxygen to the aerobic area, supplement the dissolved oxygen in the aerobic area, and keep the system biomass stable.
2. Process route
The sewage is collected at the front end to the sand settling well through the pipe network, enters the grid pretreatment into the conditioning tank, and then upgraded to the premixing area in the integrated intelligent sewage treatment equipment through the regulating tank lifting pump, for full mixing. After the water flows out from the bottom of the premixed area, it flows through the anoxic, anaerobic, aerobic and MBR area, and finally disinfected and discharged. During the operation of the equipment, part of the water from the mixed area directly enters the anaerobic area, and the mud and water mixture in the aerobic area returns to the anoxic area. Part of the sludge in the MBR area returns to the aerobic area, part of the sludge is discharged to the sludge tank for concentration, and the concentrated sludge is regularly transported to the sludge treatment area for treatment.
3. Application effect
After the sewage is treated by the integrated sewage treatment equipment, its water quality can reach the grade A standard of the Pollutant Discharge Standard of Urban Sewage Treatment Plant (GB18918- -2002).
technical feature
Henan foreign trade export integrated sewage treatment equipment
Although AAO / MBR process has a good removal effect on COD and ammonia nitrogen in sewage, its nitrogen and phosphorus removal capacity cannot meet the requirements of water treatment because the reflux of the aerobic area impacts the anoxic environment in the anoxic area. The AAO / MBR process is improved to strengthen the original COD removal effect while retaining the nitrogen and phosphorus removal effect, which can greatly improve the practicability of the process. Shandong Zhongqi Enlightenment Environmental Protection Equipment Co., Ltd. has developed an integrated sewage treatment equipment after many years of research and practice on inverted AAO and MBR. The equipment integrates the separation of hypoxia, anaerobic, aerobic and MBR. The inverted AAO process in the equipment avoids the negative effects of dissolved oxygen and nitrate on phosphorus release, and the segmented water mode solves the problem of insufficient carbon source in the anaerobic area.
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