Baiyin City Sewage Treatment Equipment - Hospital Sewage

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Application of Biological Deodorization Technology

The control of indicators such as humidity, temperature, pH value, filler porosity, and residence time is crucial during the operation of a biological deodorization system. If it can operate continuously and normally according to the design conditions, its advantage of low operating costs is still quite obvious. Especially suitable for large-scale sewage treatment plants, where the odor source is relatively stable and the odor volume is relatively large, but the professional quality requirements for the operators are relatively high, otherwise the biological filter will be difficult to operate normally according to the design conditions;

（3） Application of Ionic Deodorization Technology

Ionic method is mainly used for low concentration odor treatment and can be applied to solid waste and sewage treatment industries, but it should be developed according to actual needs. Research has shown that the ion method can achieve a removal rate of up to 90% for organic odor components such as acetic acid and aldehydes, but the removal rate for H2S and NH3 does not exceed 45%. It is also necessary to consider that the key component of the ion generator, the ion tube, will gradually decline over time, and the corresponding deodorization efficiency will also gradually decrease. According to the information provided by the ion tube manufacturer, after 1-2 years of use, the ion intensity generated by the ion tube will decrease to a certain extent. And for the environment of sewage treatment plants, due to high humidity, their treatment efficiency will also be greatly affected.

It's an honor to introduce this equipment to you. Before introducing it, let me first get to know Weifang Runchuang Environmental Protection Equipment Co., Ltd., which is located in Weifang, Shandong Province, known as the Kite Capital. With the continuous deepening of China's opening-up to the outside world, the tourism and real estate industries in our country have flourished. High end hotels and villa communities have emerged, but they are often far away from urban sewage treatment plants, which brings inconvenience to centralized treatment of domestic sewage. In order to protect the environment and benefit future generations, Tongji University has successfully developed the RCHB series sewage treatment equipment. This device adopts the world's biological treatment process to remove BOD₅、 COD、NH₃-N in one, it is currently an efficient sewage treatment equipment. It is widely used for the treatment of domestic sewage in high-end hotels, villa communities, and residential areas, replacing septic tanks with low removal rates that cannot meet national comprehensive discharge standards after treatment. Field applications have shown that the RCHB series sewage treatment equipment is a highly effective and easy to manage device.

Working principle
The removal of organic pollutants and ammonia nitrogen by the RCHB series sewage treatment equipment mainly relies on the AO biological treatment process in the equipment. The working principle is that due to the high concentration of organic matter in sewage, microorganisms are in a state of hypoxia. At this time, microorganisms are facultative microorganisms. Therefore, the * tank not only has a certain function of removing organic matter, reducing the organic load of subsequent aerobic tanks, but also has a certain amount of organic matter and high NH3-N content. In order to further oxidize and decompose organic matter, and ensure smooth nitrification under carbonization, an aerobic biological contact oxidation tank with low organic load is set up at level O. There are mainly aerobic microorganisms and autotrophic bacteria (nitrifying bacteria) in the O-level pool. Aerobic microorganisms decompose organic matter into CO₂And H₂O. Autotrophic bacteria (nitrifying bacteria) utilize inorganic carbon produced by the decomposition of organic matter or CO in the air₂As a source of nutrients, NH in wastewater is extracted₃-N is converted into NO-2-N and NO-3-N, and the effluent from the O-grade tank is partially refluxed to the * tank, providing an electron acceptor for the * tank and ultimately eliminating nitrogen pollution through denitrification.

Main features of Shandong Runchuang Runchuang Environmental Protection Equipment Co., Ltd
① The RCHB series sewage treatment equipment can be buried underground, and the surface can be used as green or square land. Therefore, this equipment does not occupy surface area, does not require building, and does not require heating and insulation.
② The AO series sewage treatment equipment consists of two levels of tanks. The first level is a reinforced concrete structure with a large burial depth, and the second level is a steel structure with a shallow burial depth. The steel structure tanks are coated with domestic shouhuagn interpenetrating network anti-corrosion coating for corrosion prevention. Character is an interpenetrating polymer formed by the interpenetrating of rubber and plastic networks. 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 12 years.
③ The AO biological treatment process in the RCHB series sewage treatment equipment adopts a push flow biological contact oxidation tank, which has a better treatment effect than the mixed or two-stage series mixed biological contact oxidation tank. Moreover, it has a smaller volume than the sludge tank, 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 air oxygen in water.
④ Due to the use of a biological contact oxidation tank in the AO biological treatment process, the volume load of the packing is relatively low, 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 HY series sewage treatment equipment is relatively small, and generally only needs to be discharged once every 90 days.
⑤ The RCHB series sewage treatment equipment not only adopts conventional blower noise reduction measures (such as vibration isolation pads, etc.), but also sets up new sound-absorbing materials on the inner wall of the blower room, so that the noise level during equipment operation is below 50 decibels, reducing the impact on the surrounding environment.
⑥ The RCHB series sewage treatment equipment is equipped with soil deodorization facilities, which utilize reinforced concrete structure to set up improved soil and air distribution pipes in the upper space of the pool body. When the 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 finally decomposed by microorganisms to achieve deodorization.
⑦ The RCHB series sewage treatment equipment is equipped with a fully automatic electrical control system and equipment damage alarm system. The equipment has good reliability, so it generally needs to be managed by a dedicated person and only requires monthly or quarterly maintenance and upkeep.
Main design parameters
Primary sedimentation tank: The RCHB series primary sedimentation tank is a flat sedimentation tank with a surface load of 1.5m³/m².hr。
Regulating pool: The RCHB series has a regulating time of 6 hours.
*Biological tank: RCHB series * The biological tank is a push flow biological contact oxidation tank, and the residence time of sewage in the tank is 2.7 hours. The filling material is elastic three-dimensional filling material with a specific surface area of 200m³/m².
O-grade biological tank: The RCHB series O-grade biological tank is a push type biological contact oxidation tank, with a wastewater retention time of 3.0 hours in the tank. The filling material is an elastic three-dimensional filling material with a specific surface area of 200m³/m².
Secondary sedimentation tank: The RCHB series secondary sedimentation tank is a cyclone sedimentation tank with a surface load of 1.0m³/m²The precipitation time for HR is 2.1 hours.
Disinfection pool: The RCHB series disinfection pool is a swirl reflection pool, and the total residence time of sewage in the pool is about 30 minutes.
Sludge tank: The total capacity of the RCHB series sludge tank and the primary sedimentation tank hopper can store sludge for 90 days. Then, a suction truck can be used to extend into the bottom of the sludge tank through the inlet hole for suction and transportation.

Type designThe design of the equipment is mainly aimed at the treatment of domestic sewage and similar industrial organic sewage. The main treatment method is to use the currently mature biochemical treatment technology - contact oxidation method. The water quality parameters are designed according to the general domestic water quality, with an inlet BOD of 20Omg/l and an outlet BOD of 20mg/l. It consists of six parts: 1. primary sedimentation tank; 2. Contact oxidation tank; 3 secondary sedimentation tanks; 4. Disinfection pool and disinfection device; 5 sludge tanks; 6 fan rooms and fans. The following are discussed separately: 1. Primary sedimentation tank: The equipment primary sedimentation tank is a vertical flow sedimentation tank, and the upward flow velocity of sewage in the sedimentation tank is 0.6-0.7 mm/s. The settled sludge is lifted to the sludge tank by air. Note: O.5-5m/h without primary sedimentation tank) 2 Contact oxidation tank: After primary sedimentation, the water flows automatically to the contact tank for biochemical treatment. The contact tank is divided into three stages, with a total residence time of more than 1 hour. The contact oxidation time of the reinforced equipment can reach 6 hours, and the filler is a novel trapezoidal filler. Easy to form conjunctiva and not clog. The specific surface area of the filler is 160m/m, and the gas water ratio of the contact tank is around 12:1. 3. Secondary sedimentation tank: The biochemical wastewater flows into the secondary sedimentation tank, which consists of two vertical flow sedimentation tanks operating in parallel. The upward flow velocity is 0.3-0.4 millimeters per second. The sludge is discharged by air lifting to the sludge tank. 4 Disinfection Pool and Disinfection Device: The disinfection pool is designed according to the TJI474 standard for 30 minutes. If it is hospital sewage, the retention time of the disinfection pool can be increased to 1-1.5 hours, using a solid chlorine contact dissolution disinfection method. The disinfection device can continuously change the dosage according to the size of the water output, achieving the goal of adding more water and more medicine, and adding less water and less medicine. Other disinfection devices can be separately prepared. 5. Sludge tank: All sludge from the primary and secondary sedimentation tanks is air lifted into the sludge tank for aerobic digestion. The clear liquid from the sludge tank flows back to the contact oxidation tank for further treatment. After digestion, there is very little residual sludge, usually cleaned once every 1-2 years. The cleaning method can be to use a suction truck to extend from the inspection hole of the sludge tank into the bottom of the sludge and carry out suction and transportation. 6. Fan room and fan: The equipment fan room is located above the disinfection pool, with double-layer sound insulation at the entrance. The air inlet has a muffler and fan filter, so there is no noise during operation. The fan adopts two L-shaped Roots blowers, which can automatically alternate operation. The operating life of a single wind turbine is about 30000 hours.

The natural plant liquid washing and deodorization technology is a deodorization technology developed based on the summary of the advantages and disadvantages of acid-base washing methods. The process is flexible, the operation and management are convenient, and no toxic by-products are produced after the reaction. There is no secondary pollution problem, and it has good safety. It can be widely used in solid waste treatment landfills, polluted ground, etc; Especially suitable for small sewage pumping stations and sewage treatment plants where odor collection is difficult, it can be shut down and turned on at any time with little impact on the system; But plant liquid is a disposable raw material, and its high operating cost is one of the reasons that affect its widespread application in large-scale sewage treatment plants.

Baiyin City Sewage Treatment Equipment - Hospital Sewage