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  • Slaughtering sewage treatment equipment zl-tzws002

    Source: Author: Bluestar Environmental Time: 2015-08-27 14:34:58 Views: Times

    Slaughtering sewage treatment equipment

    Slaughtering sewage treatment equipment

    的由来: Origin of slaughtering sewage treatment equipment :
    In 1971, Professor Lettinga of Wageningen Agricultural University in the Netherlands invented the three-phase separator through the physical structure design and the use of the difference in the effect of gravity on different density substances. The activated sludge residence time was separated from the wastewater residence time to form a prototype of an upstream anaerobic sludge bed (UASB) reactor. In 1974, the Dutch CSM company discovered the biopolymer structure formed by the immobilization mechanism of activated sludge itself, namely granular sludge, in its 6m3 reactor for treating sugar beet wastewater. The emergence of granular sludge not only promoted the application and development of the second-generation anaerobic reactor represented by UASB, but also laid the foundation for the birth of the third-generation anaerobic reactor.
    Equipment introduction:
    Slaughterhouse sewage is one of the largest sources of organic pollution in China. The slaughtering and processing of livestock, poultry and fish will produce a large amount of sewage. The sewage contains a large amount of blood, oil, minced meat and hair. It's very difficult. In response to this situation, the sewage treatment equipment used in the slaughter plant uses biological treatment technology to effectively treat the slaughter sewage.
    Utilizing the metabolic characteristics of anaerobic microorganisms, the reduced organic matter is used as a hydrogen acceptor without the need to provide external energy, and methane gas with energy value is generated at the same time. The anaerobic biological treatment method is not only suitable for high-concentration organic wastewater, the highest BOD concentration in the inlet water can reach tens of thousands of mg / l, but also applicable to low-concentration organic wastewater, such as municipal wastewater.
    Low energy consumption during the anaerobic biological treatment process; high organic volume load, generally 5-10kgCOD / m3.d, the highest can be 30-50kgCOD / m3 d; the amount of residual sludge is small; the anaerobic bacteria have low nutritional requirements and are resistant to Highly toxic and degradable organic matter with high molecular weight; strong shock load resistance; biogas produced is a clean energy source.
    Today, the whole society advocates circular economy and pays attention to the industrial waste to implement resource recycling. Anaerobic biological treatment has developed rapidly.
    The UASB (Up-flow Anaerobic Sludge Bed, UASB) process has the dual characteristics of anaerobic filtration and anaerobic activated sludge process, as it can convert pollutants in sewage Into renewable clean energy-a technology for biogas.
    Device parameters:
    Product name: Slaughtering sewage treatment equipment Brand: Henan Zhonglan Environmental protection Model: zl-tzws002
    Amount of sewage treated: 1.3 (m3 / h)
    Outlet pipe diameter: 20-200 (mm)
    Inlet pipe diameter: 50-200 (mm)
    Aerator power: 0.55-15.5 (kw)
    Water pump power: 0.55-5 (kw)
    Whether processing custom: Yes

    Slaughtering sewage treatment equipment

    Slaughtering sewage treatment equipment

    working principle :
    The UASB consists of a sludge reaction zone, a gas-liquid-solid three-phase separator (including a sedimentation zone) and an air chamber. A large amount of anaerobic sludge remains in the bottom reaction zone, and sludge with good sedimentation and coacervation properties forms a sludge layer in the lower part. The sewage to be treated flows from the bottom of the anaerobic sludge bed and comes into contact with the sludge in the sludge layer for mixed contact. The microorganisms in the sludge decompose the organic matter in the sewage and convert it into biogas. The biogas is continuously emitted in the form of micro-bubbles. During the ascent process, the micro-bubbles continuously merge to gradually form larger bubbles. In the upper part of the sludge bed, due to the agitation of the biogas, a sludge with a relatively thin sludge concentration rises with the water and enters the For phase separators, when the biogas hits the reflector in the lower part of the separator, it is folded around the reflector and then passes through the water layer to enter the gas chamber. The biogas is concentrated in the gas chamber and is led out by a duct. In the sedimentation area of the separator, the sludge in the sewage flocculates, the particles gradually increase and settle under the action of gravity. The sludge sludge that settles on the inclined wall slides back to the anaerobic reaction zone along the inclined wall, so that a large amount of sludge accumulates in the reaction zone. The treated water separated from the sludge overflows from the upper part of the overflow weir in the sedimentation zone, and then discharges Mud bed.
    pay attention:
    (1) Provide favorable physical, chemical and mechanical conditions for sludge flocculation, so that anaerobic sludge can obtain and maintain good sedimentation performance;
    (2) A good sludge bed can often form a fairly stable biological phase, maintain a specific micro-ecological environment, can resist strong disturbance power, and large flocs have good sedimentation performance, thereby improving the Sludge concentration
    (3) By setting up a sedimentation zone in the sludge bed equipment, the fine particles of sludge are further flocculated and precipitated in the sludge layer of the sedimentation zone, and then returned to the sludge bed.
    Features:
    1. Integrated processing of BOD5, COD, NH3-N, fecal coliform, and PH.
    2. The entire set of equipment can be buried underground without occupying the surface area.
    3. The generated voice is low, the odor is small, and the impact on the surrounding environment is small.
    4. The degree of purification is high, and the amount of sludge produced by the whole system is small.
    5, high degree of automation, easy management, no need for special management.
    6. Stable technology and easy maintenance.
    7, low energy consumption, saving operating costs.

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