Wastewater treatment method

A waste water treatment, waste water technology, applied in water/sewage multi-stage treatment, water/sludge/sewage treatment, chemical instruments and methods, etc., can solve the problem of ineffective removal of heavy metals and harmful substances in water

Inactive Publication Date: 2014-08-13
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AI-Extracted Technical Summary

Problems solved by technology

[0003] The original wastewater treatment methods generally use physical treatment methods to tr...
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The invention discloses a wastewater treatment method which is characterized by comprising a physical treatment method, a biological treatment method and a chemical treatment method. The method disclosed by the invention can filter wastewater to direct drinking water, effectively remove harmful substances such as suspended solids, floating oil, organic matters, colloid pollutants, heavy metals and the like and realize the purpose of purifying water which cannot be realized by other methods.

Application Domain

Multistage water/sewage treatment

Technology Topic

PollutantEnvironmental chemistry +9


  • Experimental program(1)

Example Embodiment

[0011] Example 1:
[0012] A wastewater treatment method, which is composed of a physical treatment method, a biological treatment method, and a chemical method. The physical treatment method uses structures such as grilles, screens, sedimentation tanks, and grease traps to remove waste water Preliminary adjustment of the pH value of suspended solids and floating oil to reduce the degradation of wastewater. For example, the precipitation method can be used to remove suspended particles with a relative density of greater than 1 while recovering these particles; flotation (or air floatation) can remove milky Oil droplets or suspended matter with a relative density close to 1; the filtration method can remove suspended particles in the water; the evaporation method is used to concentrate non-volatile soluble substances in wastewater, etc., and the biological treatment method uses the biochemical action of microorganisms to remove Organic matter and some colloidal pollutants, for example, the biological filtration method and the activated sludge method are used to treat domestic sewage or organic production wastewater, and the organic matter is transformed and degraded into inorganic salts to be purified, and the chemical method uses chemical reaction or physical chemical action to recover Soluble waste or colloidal substances, for example, the neutralization method is used to neutralize acid or alkaline wastewater; the extraction method uses the "distribution" of soluble waste in two phases with different solubility to recover phenols, heavy metals, etc.; the redox method is used to remove Reducing or oxidizing pollutants in wastewater can kill pathogenic bacteria in natural water bodies.
[0013] In summary, the method of the present invention can filter waste water into direct drinking water, can effectively remove suspended solids, slick oil, organic matter, colloidal pollutants, heavy metals and other harmful substances in water, and can achieve water purification purposes that cannot be achieved by other methods.


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Description & Claims & Application Information

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