Gallery-type sewage treatment system and method for treating sewage by adopting system
A sewage treatment system and corridor technology, applied in biological water/sewage treatment, water/sludge/sewage treatment, chemical instruments and methods, etc. The effect of water quality stabilization and compliance
Active Publication Date: 2017-12-05
ZOOMLION ENVIRONMENTAL IND CO LTD
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Problems solved by technology
[0008] 3. Due to the existence of the mixed liquid return system and the sludge return system, the complexity of the system has increased, and higher requirements have been put forward for the layout of equipment and the control of electrical and automation systems
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Embodiment 1
[0048] use figure 1 The shown corridor type sewage treatment system carries out sewage treatment, wherein, fresh sewage flows continuously from the water inlet of the first treatment area with the flow rate of 10L / h, adds fresh sludge with the amount of 1L / h at the same time; Under the impetus of the pusher 1, it enters the II processing area, the III processing area, the IV processing area and the MBR membrane area in turn; wherein, by controlling the bottom of the II processing area, the III processing area and the IV processing area The aeration rate of the aeration device makes the dissolved oxygen amount of the II treatment area be 0.2mg / L, the dissolved oxygen amount of the III treatment area is 0.5mg / L, and the dissolved oxygen amount of the IV treatment area is 2mg / L, And the dissolved oxygen of the 1st treatment zone caused by the backflow of the MBR membrane zone is 0.1mg / L; Control the extraction pump of the clear water outlet pipeline, make the clear water (water q...
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The invention relates to the field of sewage treatment, and concretely relates to a gallery-type sewage treatment system and a method for treating sewage by adopting the system. The system is a gallery-type structure, a first treatment zone, a second treatment zone, a third treatment zone, a fourth treatment zone and an MBR membrane zone are arranged in the system in a head-to-tail serial communicating manner, and the starting end of the first treatment zone communicates with the tail end of the MBR membrane zone, the first treatment zone is provided with a sewage inlet, the MBR membrane zone is provided with a clear-water outlet, and therefore the sewage enters the first treatment zone and sequentially flows to the second treatment zone, the third treatment zone, the fourth treatment zone and the MBR membrane zone. According to the system, a sewage microbiological treatment process is in organic combination with a membrane treatment process, and therefore a pool body volume is fully utilized. The system has the advantages that the land occupation area is small, the energy consumption is low, treated water quality is stable and meets a standard and the like.
Description
technical field [0001] The invention relates to the field of sewage treatment, in particular to a corridor type sewage treatment system and a sewage treatment method using the system. Background technique [0002] At present, the MBR (membrane biotechnology) process has been widely used in the design of integrated sewage treatment equipment. The MBR process has the advantages of excellent water discharge effect, stable operation, and small footprint. The existing MBR integrated sewage treatment equipment mainly adopts A / O-MBR process, A 2 / O-MBR process, etc. [0003] Among them, the A / O-MBR process is to add a hydrolytic acidification tank at the front end of the aerobic tank of the traditional MBR process system. The sludge flows back to the front end of the hydrolytic acidification tank; in the hydrolytic acidification tank, some macromolecular organic matter is decomposed into small molecular organic matter, and enters the subsequent aerobic pool for further transforma...
Claims
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IPC IPC(8): C02F3/12
CPCC02F3/121C02F3/1268Y02W10/10
Inventor 赵朋李锦张帆邓方平余明达
Owner ZOOMLION ENVIRONMENTAL IND CO LTD