integrated equipment for sewage treatment plants wwtp mbr effluent waste water treatment machinery

Note: The integrated sewage treatment equipment is suitable for domestic sewage or similar wastewater, and the main process adopts "hydrolytic acidification + contact oxidation + precipitation + ultraviolet disinfection", the first-level discharge standard.

1.Working principle of integrated sewage treatment equipment:

The working principle of the integrated sewage treatment equipment is mainly based on biological treatment technology, which uses the metabolism of microorganisms to decompose and purify organic matter in the water. When the sewage enters the equipment, it passes through a series of treatment units, and the pollutants in the sewage are removed through the combined action of physics, chemistry and biology to purify the water quality.

Specifically, the microorganisms in the equipment convert organic matter into inorganic matter, such as carbon dioxide and water, through adsorption, oxidation and decomposition, and remove pollutants such as nitrogen and phosphorus in the sewage. In this process, microorganisms play a key role. They convert organic matter into their own cell substances or energy through metabolic activities, thereby purifying sewage.

2.The main components of integrated sewage treatment equipment:

The integrated sewage treatment machine is a device that integrates multiple sewage treatment functions. Its main configuration includes the following parts:

①Integrated sewage equipment main body: The main body of the equipment has a compact structure and cleverly integrates the equipment room, hydrolysis acidification tank, contact oxidation tank, sedimentation tank and sludge tank, realizing full automation of sewage treatment. Each functional area is clearly divided, making it easy to operate and maintain.

②Lifting system: Equipped with a high-performance sewage lifting pump, combined with a liquid level switch and an electromagnetic flow meter, to accurately control the sewage flow to ensure that sewage enters the treatment process stably and improves treatment efficiency.

③Hydrolysis and acidification unit: The optimized water distribution system and underwater flow booster are used to effectively promote the full contact between sewage and microorganisms, accelerate the decomposition of organic matter, and lay a solid foundation for subsequent treatment.

④Contact oxidation unit: The perfect combination of microporous aeration disk, aeration pipes and accessories provides sufficient oxygen for microorganisms, accelerates the biodegradation process, and significantly improves the sewage treatment effect.

⑤Sedimentation unit: Built-in sludge return pump to achieve effective recovery and reuse of sludge, reduce sludge discharge, and reduce treatment costs.

⑥Disinfection unit: Use advanced pipeline-type ultraviolet sterilizers to efficiently disinfect the treated water to ensure that the effluent quality meets discharge standards and ensure water safety.

⑦Air supply system: The rotary blower and air delivery pipeline system work together to provide a stable air source for the contact oxidation unit and ensure the smooth progress of the biodegradation process.

⑧Electrical control system: Equipped with an intelligent system electrical control box and high-quality cables and wires to realize remote monitoring and automatic control of equipment, reduce operation and maintenance costs, and improve work efficiency.

⑨Other configurations: Complete sewage transportation pipeline system, accessories and identification signs, etc., ensure the overall performance and safety of the equipment and provide all-round protection for your sewage treatment project.

3.Process flow of integrated sewage treatment equipment:

The process flow of the integrated sewage treatment machine usually includes the following steps:

1.Pretreatment stage:

① Screen tank: intercept large suspended particles in sewage, such as paper and plastic, through the screen to prevent them from entering the subsequent treatment unit and causing blockage.

② Regulating tank: used to balance water quality and quantity and reduce the load impact of subsequent treatment units. At the same time, the stirring device in the regulating tank makes the grease and floating objects in the sewage float up for subsequent removal.

2.Primary treatment stage:

① Primary sedimentation tank: remove suspended solids and some organic matter in sewage through sedimentation to reduce the load of subsequent treatment units.

② Biological reactor: use the metabolism of microorganisms to decompose organic matter in sewage into inorganic matter. Biological reactors usually use technologies such as activated sludge method and biofilm method, and select appropriate treatment processes according to specific water quality and treatment requirements.

3.Secondary treatment stage:

① Secondary sedimentation tank: mainly used to separate activated sludge and clean water in the biological reactor, so that clean water can be discharged, and at the same time, part of the activated sludge is recovered and returned to the biological reactor to maintain the stable operation of the system.

② Deep treatment unit: according to the effluent water quality requirements, deep treatment units such as filter tanks, activated carbon adsorption, ozone oxidation, etc. can be set up in the secondary treatment stage to further remove color, turbidity, odor and trace organic matter in the water.

4.Disinfection and discharge stage:

① Disinfection tank: use physical or chemical methods to disinfect sewage, such as ultraviolet disinfection, chlorine disinfection, etc. The disinfected sewage needs to undergo water quality testing to ensure that the effluent water quality meets the relevant discharge standards.

②Discharge port: The disinfected sewage is discharged into the environment through the discharge port. The discharge port needs to be equipped with online monitoring equipment to monitor the effluent water quality in real time to ensure that the discharge meets the standards.

5.Sludge treatment and disposal stage:

The integrated sewage treatment equipment will produce a certain amount of sludge during operation. The sludge treatment and disposal stage is to treat and dispose of the generated sludge to reduce environmental pollution and waste of resources. According to the nature of the sludge and local environmental protection requirements, appropriate sludge disposal methods can be selected, such as landfill, incineration, composting, etc.

4.Advantages of integrated sewage treatment equipment:

Efficient sewage treatment capacity

The integrated equipment has a high removal rate for organic matter. Generally, the removal rate of chemical oxygen demand (COD) can reach more than 90%, the removal rate of biochemical oxygen demand (BOD) can reach more than 95%, and the removal rate of suspended solids (SS) is close to 100%. This is because membrane separation technology can effectively intercept microorganisms and pollutants, so that microorganisms can fully decompose organic matter in sewage, and the effluent water quality is stable and is not affected by factors such as sludge swelling.

Small footprint

Due to its integrated design, multiple processes such as biological treatment and membrane separation are concentrated in one device. Compared with traditional sewage treatment processes (such as activated sludge method + sedimentation tank), facilities with large floor space such as secondary sedimentation tanks are omitted, which greatly reduces the footprint of the equipment. Generally speaking, the footprint of MBR integrated equipment is only 1/3 - 1/2 of that of traditional processes.

Good effluent water quality

It can produce high-quality recycled water. Its effluent water quality can not only meet the national Class A discharge standard, but also meet higher reuse standards, such as landscape water, green irrigation, industrial circulating cooling water, etc. This is because the fine filtration of the membrane can remove bacteria, viruses and most soluble organic matter, and the turbidity of the effluent is very low, usually less than 0.1NTU.

High degree of automation

The automatic control unit can realize the automatic operation and monitoring of the equipment, reducing the workload and errors of manual operation. The operator can understand the operating status and water quality of the equipment in real time through the remote monitoring system, and can adjust the operating parameters of the equipment in time according to the needs, which improves the reliability and flexibility of the equipment operation.

6.Application scenarios of integrated sewage treatment equipment:

Domestic sewage treatment: It is widely used in the treatment of domestic sewage in residential areas, villages, towns, tourist attractions, etc. For example, in small residential areas, integrated sewage treatment equipment can be installed in the basement or under the green space of the community to treat the domestic sewage of residents. The treated water can be used for greening irrigation or landscape water replenishment in the community to achieve the recycling of water resources.

Municipal sewage treatment: Municipal sewage mainly comes from domestic sewage, industrial wastewater and rainwater runoff, and its composition is complex and diverse. In addition to common pollutants such as organic matter, nitrogen, phosphorus, and microorganisms, it may also contain heavy metals, toxic and harmful substances, and difficult-to-degrade organic matter. After the above treatment process, municipal sewage can meet national emission standards and effectively improve the quality of urban water environment. At the same time, through anaerobic digestion of sludge and biogas utilization, as well as resource utilization methods such as sludge composting, resource recovery and energy conservation and emission reduction can be achieved.

Slaughterhouse sewage treatment:

Due to the large amount of organic matter, grease, suspended matter, pathogenic microorganisms and some inorganic toxins (such as fluoride and sulfide) produced during the slaughtering process, slaughterhouse sewage has the characteristics of high organic matter concentration, high grease content, high suspended matter, rich pathogenic microorganisms, and large water quality fluctuations. After the above treatment process, pollutants such as organic matter, suspended matter and pathogenic microorganisms in slaughterhouse sewage have been effectively removed, and the effluent water quality is clear and transparent, meeting national emission standards.