Technological process and apparatus for drinking water treatment by film method

Abstract

The invention provides a film method drinking water treatment equipment and a treatment method thereof. According to the treatment equipment of the invention, the film method drinking water treatment equipment comprises: a pretreatment unit, a coagulation tank and a film separation tank; a wide grille and a Y-shaped pipeline filter, etc. are arranged in the pretreatment unit for pre-treating the raw water and avoiding the blockage to a water pump and an inlet water meter by impurities in the raw water; the coagulation tank is a mechanical coagulation tank for coagulating the raw water; and the film separation tank adopts a curtain type membrane module structure to filter the raw water. The raw water is put with a coagulant after going through the pretreatment unit and then enters the coagulation tank, and the water treated by coagulation is treated by components of the curtain type membrane module. The drinking water treatment equipment adopts the combination of coagulation and membrane filtration to treat the micro-polluted surface water, and can fully prevent bacteria and effectively remove various suspended particles, bacteria, algae, COD and organic matters in water, thereby ensuring the excellent water quality with nearly zero water suspended substance.

Description

technical field [0001] The invention relates to a water treatment process and its equipment. Background technique [0002] The problem of water resources is one of the most prominent problems in the sustainable development of our country's society in the 21st century. The total amount of fresh water available globally is less than 1% of the world's total water storage. At present, many fresh water sources in the natural environment, including groundwater, river water, lakes and reservoir water, are polluted to varying degrees by industrial waste water, domestic sewage and other man-made pollution, which makes the color, odor and taste of the water change greatly, which is harmful. Or toxic substances are easy to enter the water body. Many organic substances have acute or chronic, direct or indirect toxic effects on the human body, including carcinogenic, teratogenic and mutagenic effects. According to statistics, only 32% of the 110 key river sections of my country's seve...

AI Technical Summary

Problems solved by technology

The main defects are as follows: can not effectively remove various organic matter, COD Mn The removal rate is not high; and a variety of organic halides produced by chlorination disinfection are more toxic than their precursors. In order to improve coagulation, improve filter efficiency, and ensure the sterilization effect, more chlorine is added. The reaction of organic matter (such as fulvic acid and humic acid) to generate THMs and other disinfection by-products creates conditions; the removal of some protozoa cannot meet the standards; the area is large, the equipment is complicated, and the operation and maintenance are more troublesome, etc.

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