Equipment and method for environment-friendly treatment of comprehensive wastewater

Abstract

The invention provides equipment and a method for environment-friendly treatment of comprehensive wastewater. An oily wastewater treatment system, a heavy metal wastewater treatment system, a complexwastewater treatment system, a comprehensive wastewater treatment system and a sludge pressure filtration and dehydration system are matched to complete treatment of wastewater. Various wastewater treatment is high in integration level and obvious in treatment effect; compared with a traditional underground type wastewater treatment station which needs to perform be subjected to civil engineeringand corrosion protection, can not be moved, is low in degree of automation and unreasonable in flow optimization, can not reach the wastewater treatment standard and the like, the equipment and the method provided by the invention have obvious improvements; the system integrates the subjects of physical sedimentation and separation, electrochemistry, reagents, wastewater treatment, environment, automation, mechanical and electronicelectromechanical integration and the like; and the problems of difficult wastewater treatment and large-scale construction of an environment-friendly treatment station for building a factory are thoroughly and effectively solved.

Description

technical field [0001] The invention relates to a medium and small-scale environmental protection equipment and process for treating various comprehensive waste water, in particular to a small-scale circuit board factory, small electroplating factory, car wash shop, etc. for treating heavy metal ion, acid-base, and clean waste water. Treatment system and equipment, the equipment is suitable for treating waste water volume below 300 cubic meters per day. Background technique [0002] PCB (printed circuit board) production wastewater will contain more heavy metal ions, such as nickel ions, copper ions, etc., and contain a large amount of wastewater with strong acid and strong alkaline substances and organic wastewater. This type of wastewater contains high COD and high ammonia nitrogen. , High heavy metal, high SS. If this type of wastewater is discharged directly, it will cause pollution of the environment, rivers and waste of metals. Therefore, it is necessary to effectivel...

AI Technical Summary

Problems solved by technology

Many existing enterprises have the following disadvantages for PCB wastewater treatment: sand filtration steps make the treatment process quite cumbersome, greatly increasing the cost of wastewater treatment, and it is easy to filter and saturate to form sludge running out; the civil engineering environmental protection facilities built in the past are old, and Non-movable, or basically out of operation or partially able to operate; the unreasonable design in the early stage leads to the ineffective treatment of waste water up to the standard; too much investment in civil engineering and other defects

Images