Censored content material
A fancy of economic facilities, places of work and excessive -class buildings has a complete building space of 43,400m2 with 804 residences and 28 backyard homes, the very best wastewater movement of this complicated is 595m3/day. Evening, primarily home wastewater. To satisfy the environmental rules, the investor has constructed a wastewater remedy system with a capability of 600m3/day. Evening. If you’re in want of building of home wastewater remedy system with a capability of 600m3/day. You possibly can confer with the system of this complicated.
1. Evaluation of arising supply and wastewater traits
Actions within the complicated are industrial facilities, procuring, leisure, workplace leasing, customer support, kindergarten, meals, drinks, quick meals and every day actions of residents, and so forth.
– Cleansing actions (bogs, urine) of buildings, kindergartens, places of work and industrial facilities;
– Waste water from the kitchen space (kitchen sink) preliminarily processing supplies, meals processing, dishwashing and instruments;
– Ground drainage, washbasin, room, gathering waste;
– Waste water from washing machines of buildings;
– Wastewater from the basement;
– Swimming pool wastewater.
The attribute properties of wastewater: Wastewater comprises polluted substances reminiscent of soluble natural substances, vitamins, detergents, micro organism, germs that trigger illness.
From figuring out movement and traits. The character of wastewater, the technological plan of wastewater remedy is AAO expertise (anaerobic – cardio – cardio).
2. Manufacturing wastewater remedy system, capability of 600m3/day.
For wastewater from the bathroom: Being put right into a 3 -compartment septic tank for preliminary remedy earlier than placing into the air conditioner tank earlier than going into the wastewater remedy system 600m3/day.
For wastewater generated from the kitchen space (containing giant quantities of grease): Put into the grease separator to take away grease earlier than going into the centralized wastewater remedy system.
All the quantity of home wastewater after being handled preliminary might be introduced again Centralized wastewater remedy system.

3. Know-how strategy of home wastewater remedy, capability of 600m3/day.
Enter wastewater> Air -conditioning tank> fuel deficiency tanks> Assortment tanks handled by sticky microorganisms> Lamen sedimentation tank> Intermediate tank> ammonia remedy tools> disinfection tanks> Wastewater after remedy reaches column B, QCVN 14/2008/BTNMT
Processing course of
The wastewater remedy course of takes place as follows:
Enter wastewater tank
Wastewater from the power's centralized centralized centralized wastewater is robotically flowing into the enter wastewater compartment. From right here the water might be pumped by a submersible pump to the wastewater remedy tank by indigenous microorganisms with adhesion cushions. There may be an anaerobic, anaerobic and cardio remedy.
Air conditioner
The mission of the regulating tank: regulates the movement and focus of pollution in wastewater, reduces the dimensions and creates a secure steady working regime for the following remedy works, avoiding overloading, with a view to restrict the “surprising” of the load for microorganisms in addition to maintain the wastewater remedy effectivity secure, the rear organic tanks function successfully. Beneath the impact of the uncooked aeration system, it’s put in on the backside of the tank, the content material of vitamins is blended shortly and evenly into the wastewater. Because of this disturbing course of, the combination of wastewater by way of the regulating tank is blended with surfactants within the wastewater, and partially decomposes natural matter in wastewater (about 10% BOD).
Air tank
The fuel deficiency tank is designed within the type of organic filtration with microorganisms containing fuel deficiency. Wastewater might be evenly distributed by way of the microbiological membrane that lacks fuel contained in the tank.
Right here, the chemical response will proceed to happen between BOD natural substances with the remaining product of the decomposition course of within the tank missing the next response as:
NO3- + Natural matter (BOD- CXHYOZ) ® CO2 + H2O + N2 + OH
Time of scouring and aeration depth modifications constantly, it relies on the dissolved oxygen focus (DO) within the cardio tank. Oxygen focus have to be maintained at 2-5 mg/l (ideally 2-3 mg/l).
Cardio
Waste water first goes to the cardio microbiological remedy compartment. The water is led by way of a microbiological cushion with a particular construction that varieties a water that spreads to the branches within the cushion to create most microbiological membranes evenly even within the cushion. Cardio tanks have 70 – 80% of air pollution parts in wastewater.
The addition of microorganisms will enhance the density of microorganisms current within the tank to deal with pollution. Cardio processing course of minimizes natural pollution by way of the next chemical reactions:
– Oxidation of BOD natural compounds:
O2 + Natural matter (BOD – CXHYOZ) ® CO2 + H2O + Biomass
– Oxidation of nitrogen compounds:
O2 + NH4 + ® NO2- + H2O + biomass
O2 + NO2- ® NO3- + H2O + biomass
By means of this course of, BOD natural compounds, nitrogen -containing natural compounds reminiscent of NH4, NO2 are considerably decreased. By means of this course of, BOD natural compounds, nitrogen -containing natural compounds reminiscent of NH4, NO2 are considerably decreased.
Sedimentation tank
After leaving the cardio tank, there was nonetheless a floating mud within the water. Subsequently, to cut back the quantity of strong waste, wastewater is taken by way of the settling tank to settle these sediments because of the gravity settling technique. This tank is designed in a skinny sedimentation model (Lamen) that permits elevated sedimentation floor and shortens the water retention time.

Intermediate
Waste water after leaving the settling tank (tank 7) is flowing into an middleman tank. Intermediate tanks have the impact of storing wastewater. When adequate movement, wastewater might be pumped to ammonium remedy tools.
Ammonium remedy tools
Water after the intermediate tank is pumped into ammonium remedy filter tools with microbiological media positioned on the bracket within the processing tower. The air compressor will blow the air from the underside of the tower and the wastewater is sprayed up from above to create contact between the wastewater and the microbiological holder enhances the effectivity of ammonium remedy.
Disinfect
Wastewater has been handled in ammonium remedy tools, though comparatively clear, nonetheless comprises a certain quantity of pathogenic micro organism. Subsequently, it’s essential to be led to disinfectant to eradicate micro organism earlier than discharging into the surroundings. Wastewater from the disinfectant tank is drained to the water drain.
Mud remedy
Sludge, sedimentation within the settling tank might be partially recovered by the pump again to the microbiological block with adhesive cushions to make sure the focus of mud in the course of the processing course of, the periodic redundant sludge might be sucked by a bathroom car.
Water after processing ensures QCVN 14/2008/BTNMT (column B, Okay = 1.0) earlier than discharging into the receiving supply.
4. Dimension of wastewater remedy tanks
Specs of every tank within the wastewater remedy system 600m3/day
Stt
|
Class
|
Amount
|
Dimension (d x r x c)
|
Materials
|
1
|
Septic tank
|
9
|
Quantity: 50 – 242m3
|
Bolstered concrete
|
2
|
Grease entice
|
9
|
Quantity: 0.5 – 4m3
|
|
3
|
Enter wastewater tank
|
1
|
2m x 2.1m x 4.2m
|
|
4
|
Air conditioner
|
1
|
2m x 2m x 2.2m
|
|
5
|
Anaerobic
|
1
|
6.5m x 4.6m x 4.2m
|
|
6
|
Air tank
|
1
|
6.5m x 4.6m x 4.2m
|
|
7
|
Cardio
|
1
|
6.5m x 4.6m x 4.2m
|
|
8
|
Intermediate
|
1
|
2.2m x 2.4m x 4.2m
|
|
9
|
Sedimentation tank
|
1
|
3.5m x 3.6m x 4.2m
|
|
10
|
Disinfect
|
1
|
1.6m x 3.6m x 4.2m
|
|
11
|
Ammonium remedy tools
|
1
|
Spherical cylinder, 1.6m in diameter, 3.8m peak
|
Stainless-steel
|
5. Chemical substances and supplies used within the system
+ Equipment and tools within the assortment tank:
– Pump wastewater
– Water alarm
+ Equipment and tools within the air -conditioning tank:
– Stainless-steel littering mesh, holes from 3 – 5mm
– air blower
– Dry air plate
+ Equipment and tools within the tank lacks fuel:
– Supplies (media) carrying microorganisms
+ Equipment and tools in cardio tank:
– Supplies (media) carrying microorganisms
– Disc sperm
– air blower
+ Equipment and tools in settling tanks:
– Lamen settling plate
– Mud pump
+ Equipment and tools within the disinfection tank:
– Chlorine chemical stirring machine
– Chlorine resolution measuring pump
– Chemical tank
+ Different auxiliary gadgets:
– Waste water movement meter
– Air compressor
– Switching and management tools
– Management electrical cupboard
6. Funding prices for wastewater remedy system with a capability of 600m3/day.
For Wastewater remedy system has a capability of 600m3/day. There’s a value of about VND 5 billion to 9 billion. This value is totally different in every enterprise because of many elements reminiscent of:
– Kinds of wastewater to be handled (home wastewater or manufacturing wastewater);
– Request wastewater high quality after remedy;
– Dealing with expertise;
– Building sort, system set up;
– Necessities on high quality and origin of equipment and tools within the system;
– System constructing location.
Above is a few details about Wastewater remedy system capability of 600m3/day. Evening. If you’re in want of putting in wastewater remedy techniques with comparable capability or different capability, you possibly can contact immediately. Hotline: 0938.857.768 For extra particular trade.