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Urban waste treatment process

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Urban fecal treatment process Food waste treatment process Sludge drying treatment process

    Century Green company specially developed one set of systematic technics and equipment for the faecal treatment in harmless way. Equipment was designed and produced by the excellent technology. Operating efficiency is stable, high solid impurity elimination rate and no deminification of the equipment would occur.


    ◆Principle of problem solving


    For eliminate urban faces releasing out-of-order, prevent water and peripheral environment pollution, prevent pathogen spreading and compromising human (livestock) health, should treat urban faecal waste in harmless way.Depending on the principle about fully utilize civic establishment and resources, small investment and better efficiency to design.Use world leading - technics equipment to mechanically pre-treat faecal waste, the filtrate which after pre-treatment would connect to urban sewer network, flows to the wastewater treatment plant to process final treatment is the best choice


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    According to our over 10 years experience about faecal treatment, we consider use solid/liquid separation and flocculation dewatering process to per-treat urban faecal waste, then get to wastewater treatment plant to process final treatment is the more feasible way.


    Our company in possession of self invented patent equipments ----solid/liquid separator and GLT sludge dewatering equipment. The solid/liquid separator has the integrated function of separating, filtering, conveyance, press and dewatering.

  Characters: hermetically sealed structure; low malfunction rate; sample installation; less maintenance required; no vibration; no noise; long service life; less land required; high disposal capacity; graphic operating interface; easy operating.

  Whole body of the equipment was made of stainless steel and treated with pickling bath passivation, Anti-corrosion capability extremely increased.


    ◆urban faecal treatment process flowchart


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    ◆Conjunctional treatment process flow chart

    

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  The feces from toilet and cesspool should be transferred into the faecal treatment plant by truck. Using quickly closed tie-in mode to discharge. It could reduce air pollution during discharging process.

  Solid/liquid separating equipment ‘s disposal capacity is 1.7m3/min, impact accepting capability 3m3/min. The particle diameter bigger than 10mm in the faecal sundries would be separated by equipment. The solid content of the filtrate is lower than 5%,CODconcentration removing rate 20%, the solid content of the separated residue is 55%-70%.

    table 1: solid-liquid separating inlet / outlet parameter table


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  Liquid manure after solid-liquid separation flows into the regulation pool, in order to regulate the discharge rate (municipal wastewater pipeline diameter greater than 1 m) or water supply rate of flocculation dewatering. Powered discharge would be applied for the regulation pool.

  Flocculation Dewatering Equipment throughput capacity is 10m3/ h, liquid manure added in flocculants, meantime liquid manure start full flocculating and dewatering. The solid content of the liquid after flocculation is about 0.05% ~ 0.1%. COD removal rate was about 50% and more.

    table 2: mud removal and dewatering inlet/outlet parameter table


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    Waste slag of feces treatment plant deslagging is closed and isolated And hermetically transported to the landfill site, or for manure producing.

 

    ◆Supporting equipment and facilities


    Deodorization system

    Treatment plants equipped with deodorizing system for removing the odor which produced from treatment process. During the deodorizing process, all smelly sources taken hermetic or semi-hermetic measure, and exhaust at odor producing point, leads the odor into the treatment equipment to purify, emitted through chimney into atmosphere.

   

    table 3: main deodorizing indicator

    

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Address : 03-09, First Community of Fengzhu Yuan, No. 18,Jiaomen,Fengtai District, Beijing
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E-mail :cgeet@cgeet.com.cn
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