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A brand new challenge of constructing a residential space with an space of 110.075m2 of a inhabitants of about 3,950 individuals. It’s anticipated that when the challenge is put into operation, there will probably be wastewater with the most important stream of about 800m3/day. With the intention to guarantee compliance with environmental safety rules and full environmental information, the challenge investor has invested within the wastewater therapy system of 800m3/day. Within the following content material, invite you to consult with detailed details about the home wastewater therapy system with a design capability of 800m3/day. Evening.
1. Supply generated and traits, properties of wastewater
For this residential development challenge, wastewater is especially home wastewater, no manufacturing wastewater and Sources producing wastewater embody:
– Wastewater from every day life: Within the composition of wastewater accommodates residues, suspended substances (SS), natural compounds (BOD/COD), vitamins (N, P) and pathogenic microorganisms equivalent to E.coli, Coliform, …
– Sanitation wastewater wastewater: Within the composition of wastewater accommodates suspended substances (SS), natural compounds (BOD/COD) and pathogenic microorganisms equivalent to E.coli, Coliform, surfactants, …
– Wastewater from ground cleansing, home hygiene: Wastewater accommodates most pollution primarily natural substances, pathogenic microorganisms, suspended sediments, surfactants and chemical compounds used for cleansing. The primarily frequent air pollution elements are BOD5, COD, TSS, complete n, complete P.
– Kitchen wastewater: Kitchen wastewater accommodates grease and meals waste from the kitchen, wash dishes, …: One of these wastewater accommodates many natural substances (BOD, COD) and different dietary components (N, P). The filth in this sort of wastewater is susceptible to biodegradable.
Traits of wastewater: Elements arising in home wastewater and development wastewater are primarily substances: TSS, animal and animal grease, sulfide, ammonium, surfactants, coliform.
Significantly, wastewater from the kitchen typically accommodates different excessive grease, they’ll simply trigger odors, are obstruction of assortment pipes and trigger environmental air pollution, forestall the diffusion of oxygen on the floor, affecting the lifetime of organisms if there is no such thing as a acceptable therapy.
2. Wastewater therapy system with capability of 800m3/day.
Processing know-how diagram: Based mostly on the traits of the enter wastewater and the precise situations of the challenge, the challenge proprietor has put in the wastewater therapy system with biotechnology mixed with MBBR cell microbiological media.
Assortment system
- Waste water for households> 3 -compartment septic tanks> centralized manufacturing methods> receiving sources
- Wastewater from the kitchen> grease separator> centralized XLNT system
All wastewater of the challenge should be handled to satisfy QCVN 14: 2008/BTNMT (column A) earlier than connecting to the receiving supply. Subsequently, the challenge proprietor pledged to construct a centralized wastewater therapy system to make sure the standard of wastewater after therapy reached QCVN 14: 2008/BTNMT (column A).
Know-how diagram
Wastewater> Assortment tanks + Separate fats, waste> air -conditioning tanks> Aerotic tanks> Aerotank cardio tanks> Organic settling tanks> disinfection tanks> water drainage pits> receiving sources.
Rationalization of know-how course of
– Assortment tank: Accumulate all the quantity of home wastewater right into a single supply. That is additionally organized with rubbish separator to gather, take away rubbish, stable sediment with sizes bigger than 20mm to guard equipment, pipes and rear therapy works.
– Air conditioner: Air-con tank is liable for regulating focus and stream of wastewater, making a steady working mode for rear therapy works. Within the air -conditioning tank, there may be an aeration system to disturb the pollution, forestall anaerobic decomposition. After crossing the regulating tank, the quantity of BOD, COD decreased by about 5-10% after which pumped into the fuel therapy tank.
– Air tank: The method of decreasing nitrate-nitrogen into N2, N2O, NO fuel with the participation of cardio microorganisms and the operation of the sinking machine. On the tank additionally partially processed COD earlier than being put into cardio organic tank.
– MBBR Cardio: Cardio microorganism system N and P by way of nitrification and phosphoril. The cardio processing course of with the association of MBBR microbiological media helps to extend processing effectivity.
- Nitrification course of: NO3- —> NO2- —> N2O —> N2
- PHOTPHORITIES FOR: NO3- + CH3OH => CO2 + N2 + H2O + OH-
– Aerotank cardio tank: The biodegradable strategy of natural compounds is taken because of the cardio microbiological system. Within the pool of fuel distribution system, it’s steady to make sure that the oxygen focus is maintained at 2 – 4mg/l to offer sufficient oxygen for microorganisms.
– Organic settling tank: Separate activated sludge in wastewater after leaving the organic therapy tank.
– Sedimentation tank: Organic mud deposits from cardio processing course of
– Disinfect: Water after sediment is taken by way of the disinfection tank. On the tank, poisonous micro organism equivalent to Ecoli, Coliform, … are handled earlier than the water is taken by way of the wastewater tank after therapy.
– Therapy wastewater tank: Wastewater after therapy ensures the necessities of column A in response to QCVN 14: 2008/BTNMT are led into the tank. Right here, wastewater flows into the manholes to gather wastewater outdoors the home after which stream to the receiving supply.
– Mud therapy: The sludge is obtained at 80% organic sedimentation tanks which are pumped on a brief -circulating tank for the aim of accelerating the effectiveness of processing and decreasing the price of incurred sludge therapy, the remaining extra sludge is pumped to the sludge tank. The water from the sludge tank is led to the regulating tank.
Companies want recommendation on specialised wastewater therapy system for his or her corporations, instantly contact the atmosphere largely clicking and exchanging with consultants.
3. Specs of processing tanks within the system of XLNT
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Stt
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CATEGORY
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SPECIFICATIONS
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1
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Assortment tank, grease, rubbish separation
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– Measurement: D x R x Hn (HT) = 2.25 x 4.0x 3.5 = 31.5 m3
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2
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Air conditioner
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– Dimensions of a unit: D x R x Hn (HT) = 6.0 x 7.2 x 3.5 = 151.2 m3
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3
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Air tank
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– Dimensions of a unit: D x R x Hn (HT) = 4.5 x 7.2 x 3.5 = 113.4m3
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4
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Cardio
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– Dimensions of a unit: D x r x hn (HT)
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5
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Organic settling tank
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– Time for mud to accept about 3 – 9 hours
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6
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Intermediate tank + disinfection
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Water saving time is 1-5 hours
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7
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Sludge therapy tank
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– Measurement of tank: D x r x ton (ht) = 2.8x 2.25 x 3.5 m
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4. Funding for development of wastewater therapy system with a capability of 800m3
Funding price to construct a wastewater therapy system with a capability of 800m3 from 10 billion to 17 billion VND. Be aware, this price is just for reference and totally different in every challenge as a result of it is determined by many components equivalent to: Necessities for normal water high quality requirements, processing know-how, development phenotypes, set up, system development space, high quality necessities of equipment, tools put in within the system, system development location, and so on.
Above is a few details about the wastewater therapy system with a capability of 800m3/day. Evening. Every system with totally different capability may have totally different specs and prices.
In case you are in search of development contractors, Constructing wastewater therapy systemPlease contact Hotline: 0938.857.768 For fast assist.