Price of small-scale domestic sewage treatment facilities

Price of small-scale domestic sewage treatment facilities——Component Introduction

1Hydrolysis acidification tank

To put it simply, this process refers to the pretreatment of wastewater by fermenting it to a certain extent, making it more compatible with biochemical treatment. Although it is a pretreatment stage, it is also a very important part of the entire process, which can directly affect the efficiency and effectiveness of subsequent wastewater treatment.

2Contact oxidation tank

This stage is divided into several levels based on the quality of the treated sewage, and the distinction of these levels can be compared and distinguished in terms of time. Generally, the sewage treatment time is not more than4An hour, if it exceeds this time, this oxidation tank is a reinforced oxidation tank. This treatment process mainly involves treating organic matter in water to degrade and purify it. Inject filling material into the pool, which is attached with aerobic bacteria. These aerobic bacteria use organic matter as nutrients by artificially injecting oxygen to decompose the organic matter in the water into inorganic salts, thus achieving the purpose of purification.

3Impurity sedimentation tank

The sewage treated by aerobic bacteria flows into the sedimentation tank for further sedimentation treatment of inorganic particles and organic biofilm impurities. The operating principle of the sedimentation tank is to use gravity. When the sewage containing impurities flows from bottom to top, the impurities are settled under the action of gravity.

4: Disinfection area

The disinfection and environmental management of sewage is regulated by the relevant standard time30About minutes, if it is some special sewage such as hospital sewage, the disinfection time of the water may be longer, usually not exceeding2Hour. The disinfection device can change the amount of disinfectant added according to the amount of water discharged.

5: Sludge treatment tank

In the later stage of sewage treatment, it is essential to produce sludge after sewage purification. This sludge needs to undergo aerobic treatment to reduce sludge discharge and stabilize its chemical properties. After aerobic digestion, the sludge will be greatly reduced. At this time, a suction truck can be used to extract the sludge, and it is usually cleaned once every six months.

Price of small-scale domestic sewage treatment facilities——advantage

1Save energy and reduce operating costs: This process can be customized according to different meteorological conditions in different regions, using a combination of solar power generation and natural wind power generation for power generation and oxygen supply.
2Mature process and advanced technology: This treatment process is one of the application trends in the field of pollution control in the world todayA/OBased on the process, inventions and creations are made to ensure the long-term, stable, and reliable operation of the wastewater treatment system. After the wastewater is treated,COD、BOD、SS、PHAll meet the national comprehensive sewage discharge standardsGB8978-88The first level standard in the middle.
3Long service life, safe and reliable, does not occupy surface area, and has no impact on the surrounding environment during operation: The sewage treatment device designed by this process is mainly composed of brick and concrete structures, and the required equipment and materials are designed from the aspects of durability, ease of disassembly and cleaning. The entire processing device, except for the power generation system installed on the roof of the fifth floor or above and the distribution cabinet placed above ground level, is located below ground level.
4No secondary pollution is generated, reducing the workload of regular cleaning by sanitation personnel: in the design, the majority of the sludge generated from wastewater treatment is returned to the pre-treatment section for self digestion, ensuring and improving the effectiveness of wastewater treatment. Since no chemicals are added throughout the entire treatment stage, a small amount of excess sludge can be cleaned by sanitation personnel and sent to vegetable teams or rural fertile fields.
Sewage treatment equipment

Price of small-scale domestic sewage treatment facilities——Explanation of Oxidation Tank

Oxidation tanks are classified into several levels based on the degree of pollution in water treatment, including ordinary and reinforced integrated sewage treatment equipment. Generally judged based on the processing time. Next, let's introduce the application of integrated sewage treatment equipment in oxidation tanks.
If the integrated sewage treatment equipment takes no more than four hours to process, ordinary oxidation tanks should be used, and the treatment time should be within4-6The use of reinforced oxidation tanks between hours. The main method is to use the effluent from the hydrolysis acidification tank to flow automatically to the contact oxidation tank for biochemical treatment.
Most of the organic matter in the original sewage is degraded and purified here. Aerobic bacteria use fillers as carriers and utilize the organic matter in the sewage as food to decompose the organic matter in the sewage of the integrated sewage treatment equipment into inorganic salts, thereby achieving the purpose of purification. The survival of aerobic bacteria requires sufficient oxygen, that is, there is enough dissolved oxygen in sewage to achieve the purpose of biochemical treatment.
The air in the aerobic tank is provided by a fan, and a new type of elastic three-dimensional packing material is used in the tank. The integrated sewage treatment equipment uses this packing material, which has a large surface area ratio, long service life, easy film formation, and corrosion resistance. The bottom of the tank adopts a rotary mixing aerator, which increases the transfer rate of dissolved oxygen and has the advantages of light weight, non aging, and non clogging. The gas water ratio of the contact pool is12：1about.

Price of small-scale domestic sewage treatment facilities——advantage:
1Ideal static sedimentation can achieve excellent effluent quality.
2Alternating between aerobic and anaerobic operation, successfully achieving wastewater denitrification.
3Not using blower aeration avoids the noise pollution caused by the blower and the difficulty of replacing and repairing the aeration head.
4Using a unique construction method, Minimize the spread of odors to the greatest extent possible.
5A proper solution for residual sludge, Greatly reduces manual operations and ensures the stable and reliable operation of the system.
6Programmable automatic control, simple operation and management, easy to adjust the operating status according to the actual situation, to obtain Excellent operational performance
7Integrated manufacturing, Maximized system integration and reduced footprint.