Oil-bearing car-washing wastewater treatment method and equipment

Abstract

The invention provides a car-washing wastewater treatment method and equipment which are applied to small-sized car-washing stations. The car-washing wastewater treatment method comprises the following steps of: clarifying in a coagulating sedimentation tank with sloping plates by using a coagulant; carrying out turbidity removal and oil absorption by using fiber bundle media; carrying out air-water backwashing after the fiber bundle media become invalid; carrying out oil removal treatment on oil stain accumulated in the fiber bundle media by adding a cleaning agent at a certain water temperature; for residual organic matters of the fiber bundle media, firstly soaking the fiber bundle media by using an agent, and then cleaning; and adsorbing the organic matters and a surface active agent by using diatomite and activated carbon. The equipment adopting the method comprises the coagulating sedimentation tank designed by modular combination, a fiber filtration tank and an adsorption tank; and matched wastewater collection tanks and clear water tanks can be buried in the ground. The equipment is small in volume, low in manufacturing cost and operation cost, simple to operate and convenient to maintain and has a good effluent effect. The quality of water treated by the method and equipment can reach Water Quality Standard for Domestic Miscellaneous Water (CJ/T48-1999). The method and equipment have wide application prospect.

Description

technical field [0001] The invention relates to a method for treating oily car wash wastewater and equipment thereof, in particular to a method for treating wastewater used in small car washes and integrated equipment thereof. Background technique [0002] In recent years, with the rapid development of my country's economy, people's living standards have been greatly improved, and the number of urban car ownership has continued to rise. The accompanying car washing industry has also emerged rapidly. On the one hand, a large amount of car washing water has aggravated the water shortage. On the other hand, On the one hand, the sewage discharged has caused pollution to the environment. At the same time, the high price of commercial water has kept the cost of the car wash industry at a high level, reducing profits and increasing service costs for customers. Therefore, it is an effective measure to solve the waste of water resources in the car wash industry and reduce environmenta...

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Problems solved by technology

[0017] The technical problem to be solved by the present invention is to provide a waste water treatment method and its equipment applied to small car washes, so as to solve the problems in the prior art that the effluent quality is unstable, the water contains oil, the treatment capacity is small, and the equipment occupies a large area. shortcoming

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