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25
2022
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01
Characteristics of domestic sewage treatment equipment
Author：
After passing through the screen, wastewater enters the equalization tank and then is pumped into the bioreactor. Oxygen is supplied by an aeration machine activated by a PLC controller. The effluent from the bioreactor enters the membrane separation unit via a circulation pump. Concentrated water returns to the equalization tank. The water separated by the membrane is disinfected using rapid mixing chlorination (sodium hypochlorite, bleaching powder, chlorine tablets) before entering the reclaimed water storage tank. A backwash pump uses treated water from the cleaning tank to backwash the membrane treatment equipment, and the backwash wastewater returns to the equalization tank. The operation of the lift pump is controlled by the water level in the bioreactor. The filtration and backwashing operations of the membrane unit can be controlled automatically or manually. When the membrane unit requires chemical cleaning, close the inlet valve and wastewater circulation valve, open the chemical washing valve and chemical circulation valve, and start the chemical circulation pump to perform the chemical cleaning operation.
Domestic Wastewater Treatment Equipment
Performance Characteristics of Domestic Wastewater Treatment Equipment:
1. Excellent effluent water quality. Due to the membrane separation, other solid-liquid separation equipment such as sedimentation and filtration are unnecessary. Solid-liquid separation separates suspended matter, colloidal matter, and microbial flora lost from the biological unit from the purified water, allowing direct reuse without tertiary treatment. It has high water quality safety.
2. Small footprint. High concentrations of microorganisms are maintained within the membrane bioreactor's biological treatment unit, significantly increasing the volumetric load. Membrane separation greatly shortens the hydraulic retention time of the treatment unit, reducing the footprint. Simultaneously, because membrane bioreactors use membrane modules, they do not require sedimentation tanks or dedicated filtration workshops, with the system occupying only 60% of the land area required by traditional methods.
3. Reduced operating costs. Due to the oxygen utilization efficiency of MBR and its unique intermittent operation mode, the operating time and electricity consumption of aeration equipment are greatly reduced, saving electricity. Simultaneously, because the membrane can filter out harmful substances such as bacteria and viruses, it can significantly save the long-term operating costs associated with chemical disinfection. The membrane bioreactor process does not require the addition of flocculants, further reducing operating costs.
4. Strong shock resistance and wide adaptability. Preventing the loss of various microbial flora is beneficial to the growth of slowly growing bacteria (nitrifying bacteria, etc.), increasing the residence time of some macromolecular, difficult-to-degrade organic substances, facilitating their decomposition, and ensuring the smooth progress of various metabolic processes in the system.
5. Minimal secondary pollution. The wastewater purification level is relatively high, and the discharged wastewater is clean water.
6. High degree of automation, unattended operation, fully intelligent equipment.
7. Modular design, domestic wastewater zero-discharge equipment is easy to freely combine according to water volume. Due to its high level of integration, MBR has formed standardized and serialized standard equipment, which users can combine and install according to project needs.
The company mainly produces various dust removal, desulfurization, denitrification, VOCs waste gas purification, wastewater treatment, noise reduction, complete sets of industrial electrical control systems and equipment, and researches and develops waste gas, wastewater, waste residue, and noise treatment equipment.
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Phone:+86-5824998401
+86-9838965599
Email:yx23008@163.com
Address: Xin'an County Economic and Technological Development Zone, Luoyang City, Henan Province
