Powder active carbon filter and process for deep treatment of sewage

Abstract

The invention provides a powder active carbon filter and process for deep treatment of sewage. The powder active carbon filter comprises a carbon discharging pump, a stirrer, a recycled water tank, apowder active carbon filter body, a water production tank and an air compressor, wherein the carbon discharging pump is communicated with the recycled water tank by virtue of a pipeline, the recycledwater tank is connected with the powder active carbon filter body by virtue of a pipeline, a water inlet pump, a circulating pump, a water inlet valve, a circulation water inlet valve, an outer circulation valve, an inner circulation valve and a reflux valve, the powder active carbon filter body is communicated with the water production tank by virtue of a pipeline, a backwash pump, a water production valve and a backwash water inlet valve, and the air compressor is communicated with the powder active carbon filter body by virtue of a pipeline and a backwash gas inlet valve. By adopting the deep treatment technology of powder active carbon filtration, the soluble COD in the sewage can be effectively removed. The powder active carbon filter has the advantages of simple system operation, small land occupation area, good water outlet quality, low operation cost and high automation degree and the like.

Description

technical field [0001] The invention relates to the technical field of reclaimed water reuse, in particular to a powder activated carbon filter device and process for advanced treatment of sewage. Background technique [0002] In the second half of the 20th century, the water consumption in many countries increased sharply, and water crises appeared in many areas. Water resource issues have attracted widespread attention all over the world. In 1988, a report issued by the World Commission on Environment and Development pointed out: "Water resources are replacing oil and becoming the main problem causing crises all over the world." [0003] The reuse of reclaimed water has been recognized internationally as the "second water source for cities", and all countries in the world attach great importance to the reuse of reclaimed water. In foreign countries, such as Japan, Israel, the United States, Australia, Canada and other countries have widely used reclaimed water reuse syste...

AI Technical Summary

Problems solved by technology

However, the existing traditional technology has limited ability to remove refractory soluble COD. The treatment of pigment and soluble COD in the tail water of refractory industrial wastewater such as printing and dyeing, petrochemical, and papermaking has been a major problem so far. At present, there is no more economical and efficient method. Treatment means, dissolved COD is an important constraint factor restricting the reuse of reclaimed water

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