Selection of wastewater treatment equipment
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Our company plans to install a wastewater treatment system that can handle both domestic and industrial wastewater; it is required to have a biological treatment tank, with a daily wastewater processing capacity of around 600–700 tons. Our factory is a petrochemical enterprise; please provide some suggestions for construction, and may I also ask what the approximate budget is?
The water quality data need to be improved further; it is necessary to determine what the ratio of industrial wastewater to domestic sewage is. If industrial wastewater accounts for less than 1/3, treatment methods suitable for domestic sewage can be adopted, with the A2O process being a common choice as it enables both nitrogen and phosphorus removal.
If the SS level of the incoming water is not high, it is possible to bypass the reaction and sedimentation tank and feed the water directly into the A2O biological unit; this also helps to improve the settling properties of the activated sludge.
If the land area is large, there is sufficient funding available, and a high level of automation is desired, then the SBR and oxidation ditch processes can also be considered; these processes allow for complete automatic control, save on labor costs, and ensure stable operation.
Is the quality of the incoming water stable? Its biochemical parameters are more or less acceptable, but pretreatment is a real challenge. When designing the system, don’t try to cut costs – otherwise you’ll face a lot of problems.
It depends on the specific metrics; the investment is estimated to be around 3-4 million.
There’s no way to tell for sure; it depends on the quality of your water. It’s best to have an engineering design company prepare a plan. I developed a plan some time ago; the water volume is over 300 tons per day, with an estimated investment of over 10 million: lol
Try using an evaporator; it costs over 4 million for carbon steel versions, and 10 million or more for titanium ones. :D