Integrated sewage treatment equipment

Zhengyuan Environmental Protection specializes in the production and manufacturing of comprehensive sewage treatment equipment, with the latest technology in 2020. It has integrated sewage treatment equipment of large, medium, and small sizes, all of which are wholesale prices from manufacturers and installed on-site.

Price of comprehensive sewage treatment equipment:Starting from 10000 yuan, specific prices need to be consulted with customer service.

Scope of application of comprehensive sewage treatment equipment:

Types of wastewater treatment: domestic wastewater, medical wastewater, washing wastewater, aquaculture wastewater, slaughter wastewater, and various production wastewater.

The comprehensive domestic sewage of this project mainly includes the sewage used in daily life in the community, as well as various detergents, garbage, feces, etc. The comprehensive domestic sewage mainly contains nitrogen, phosphorus, sulfur, and more carcinogenic bacteria. The comprehensive domestic sewage treatment process generally determines the degree of sewage treatment and corresponding treatment process based on the utilization or discharge direction of comprehensive sewage and considers the natural purification capacity of the water body. The treated sewage is partially used for greening and irrigation.

Structure of comprehensive integrated sewage treatment equipment:

1. Anaerobic reactor, the original sewage and the phosphorus containing reflux sludge discharged from the sedimentation tank enter synchronously. The main function of this reactor is to release phosphorus, while some organic matter undergoes ammonification;

2. The primary function of an anoxic reactor is denitrification, and nitrate nitrogen is sent from the aerobic reactor through internal circulation. The circulating mixed liquid volume is relatively large, usually 2Q (Q is the original sewage flow rate);

3. Aerobic reactor - aeration tank, this reaction unit is multifunctional, where BOD removal, nitrification, and phosphorus absorption are all carried out. The mixed liquid with a flow rate of 2Q flows back to the anoxic reactor from here.

4. The sedimentation tank functions to separate sludge and water, with a portion of the sludge flowing back to the anaerobic reactor and the supernatant being discharged as treated water.

Working principle of comprehensive integrated sewage treatment equipment:

The biological contact oxidation method is a wastewater biological treatment method derived from the biofilm method, which involves filling a certain amount of packing material in the biological contact oxidation tank, utilizing the biofilm attached to the packing material and sufficient oxygen supply to oxidize and decompose the organic matter in the wastewater through biological oxidation, achieving the purpose of purification. The process connects the anoxic section in the front stage and the aerobic section in the back stage. In the anoxic section, heterotrophic bacteria hydrolyze soluble organic matter in the sewage into organic acids, decomposing large molecular organic matter into small molecular organic matter. Insoluble organic matter is converted into soluble organic matter, and pollutants such as proteins and fats are ammoniated to free ammonia (NH3, NH4+). In the aerobic stage, there are aerobic microorganisms and self oxidizing bacteria (digestive bacteria), among which aerobic microorganisms decompose organic matter into CO2 and H2O; Under sufficient oxygen supply conditions, the nitrification of autotrophic bacteria oxidizes NH3-N (NH4+) to NO3-, which is then returned to the anoxic stage through reflux control. Under anoxic conditions, the denitrification of anaerobic bacteria reduces NO3- to molecular nitrogen (N2), completing the ecological cycle of C, N, and O and achieving harmless treatment of wastewater.

A2O method, also known as AAO method, is the abbreviation of the first letter of Anaerobic Anoxic Oxic in English (anaerobic anoxic aerobic method). It is a commonly used secondary sewage treatment process, which can be used for secondary or tertiary sewage treatment, as well as reclaimed water reuse, and has good denitrification and phosphorus removal effects. This method was developed by some experts in the United States in the 1970s based on the AO denitrification process.

Integrated comprehensive sewage treatment equipment process:

1. Processing principle

This technology is a patented technology independently developed by our company, mainly using a special aeration method. Through a new type of water dialysis sludge reduction carrier, it creates a suitable composite living environment for microorganisms, allowing multiple types of aerobic, facultative, and anaerobic microorganisms to grow and reproduce. Through the synergistic biochemical degradation of aerobic, facultative, and anaerobic microorganisms in time and space, pollutants in sewage are decomposed and sludge is degraded in situ, as shown in Figure 2.

The anaerobic environment promotes the death of microorganisms and the predation of bacteria by protozoa and protozoa. The removal rate of total coliforms can reach over 90%, and the decomposition of organic sludge can reach 90%. The treatment of domestic sewage can stably meet the Class A or B standards of the "Pollutant Discharge Standards for Urban Sewage Treatment Plants GB18918-2002", which are determined according to the requirements on site.

The scale can reach 0.5t-500t/d, and can be flexibly made into various scales such as 1, 2, 5, 10, 25, 50, 100, 150, 200t according to the actual situation. Especially suitable for decentralized rural domestic sewage treatment. Simple operation and management. Daily automatic operation, no need for professional personnel to be on duty. Long service life, the main equipment has a service life of 15-20 years, the carrier is made of engineering plastics with a service life of more than 20 years, and the civil engineering facilities have a service life of more than 50 years.

2. Control principle

Equipment control is divided into two modes: on-site control and remote control. The operation status of the equipment is directly sent to the mobile phone of the management personnel, which facilitates the management of the equipment and can also be controlled on-site.

Advantages of Zhengyuan Environmental Protection Comprehensive Sewage Treatment Equipment:

1. Save space without occupying surface area

The "integrated sewage treatment equipment" can be buried underground, and the surface can be used as green or square land, so the equipment does not occupy the surface area, does not require building, and does not require heating and insulation.

2. Long service life can reach more than 15 years

The integrated comprehensive sewage treatment equipment consists of a pool, steel structure, and shallow burial depth. The steel structure pool adopts the domestically pioneered interpenetrating network anti-corrosion coating for corrosion prevention. It is an interpenetrating polymer formed by the interpenetrating of a rubber network and a plastic network. It is resistant to acid, alkali, salt, gasoline, kerosene, aging, abrasion, and rust. After applying the coating, the anti-corrosion life of the equipment can generally reach more than 15 years.

3. Good cleaning effect and stable effluent quality

The AO biological treatment process in the "integrated comprehensive sewage treatment equipment" adopts a push flow biological contact oxidation tank, which has a better treatment effect than fully mixed or two-stage series fully mixed biological contact oxidation tanks. And it has a smaller volume than activated sludge tanks, strong adaptability to water quality, good impact resistance, stable effluent quality, and will not cause sludge expansion. At the same time, a new type of elastic three-dimensional packing material was used in the biological contact oxidation tank, which has a large actual specific surface area and is convenient for microbial biofilm formation and detachment. Under the same organic load conditions, it has a higher removal rate of organic matter than other packing materials and can improve the solubility of oxygen in water.

4. Less sludge production, discharge once every 90 days

The "integrated comprehensive sewage treatment equipment" adopts a biological contact oxidation tank in the AO biological treatment process, which has a relatively low volume load of the packing material, and the microorganisms are in the self oxidation stage, resulting in less sludge production. In addition, the moisture content of the sludge produced by the biological contact oxidation tank is much lower than that of the sludge produced by the activated sludge tank. Therefore, the amount of sludge generated by the "integrated sewage treatment equipment" is relatively small, and generally only needs to be discharged once every 90 days.

5 soil deodorization facilities have good deodorization effect

The integrated comprehensive sewage treatment equipment is equipped with soil deodorization facilities. It utilizes reinforced concrete structure to set up improved soil and air distribution pipes in the upper space of the pool body. When odorous components dissolve in the water contained in the soil through the soil layer, they are then transferred into the soil due to surface adsorption and chemical reactions, and ultimately decomposed by microorganisms to achieve deodorization.

6. No need for dedicated personnel to monitor equipment, strong reliability

The "integrated comprehensive sewage treatment equipment" is equipped with a fully automatic electrical control system and equipment damage alarm system. The equipment has good reliability, so there is generally no need for dedicated personnel to manage it, only monthly or quarterly maintenance and upkeep are required.

7 new sound-absorbing materials with low noise

In addition to conventional measures such as vibration isolation pads and silencers, the "integrated comprehensive sewage treatment equipment" also incorporates new sound-absorbing materials on the inner wall of the blower room, reducing the noise level during operation to below 50 decibels and minimizing the impact on the surrounding environment.

The above is an introduction to the comprehensive sewage treatment equipment produced by Zhengyuan Environmental Protection. The comprehensive sewage treatment system operates automatically on a daily basis without the need for professional technical personnel, and only needs to check the operation status regularly. If possible, online monitoring and management can be realized through the Internet. If you need to purchase, please contact us for quick customization.