Method for ecological control on black-odor watercourse by combining electrochemistry with biology

Abstract

The invention discloses a method for ecological control on black-odor watercourse by combining electrochemistry with biology. The method comprises the following measures: (1) carrying out biological catalytic oxidation, electrochemical treatment and oxygenation aeration treatment; (2) finishing electrochemical treatment, feeding a microorganism agent, and simultaneously keeping oxygenation aeration treatment; (3) spreading a bottom sludge biological agent, and simultaneously keeping oxygenation aeration treatment; (4) arranging biomembrane systems at certain intervals; and (5) arranging artificial floating islands, and planting emerging hydrophytes and aquatic plants on the artificial floating islands. The method is economical and practical, and achieves the effects of rapidly controlling, eliminating blackness and odor of water, prolonging the biologic chain of the watercourse, increasing the biodiversity of water and improving the water self-purification capability of the watercourse.

Description

technical field [0001] The invention relates to the environmental protection industry, in particular to a method for treating black and odorous rivers by means of electrochemistry combined with biological ecology. Background technique [0002] Black and odorous rivers are mainly caused by external pollution continuously entering the river, resulting in the river's pollution-holding capacity being greater than its self-purification capacity. The black and odorous river water is seriously polluted, and the dissolved oxygen is almost zero. The river sediment is an important internal pollution source of the river. The black and odorous sediment continuously releases organic matter and inorganic salts to the overlying water body, which deteriorates the water quality. Nitrification and methanation cause a large amount of black and odorous bottom mud to float up, and the release of N, P, and nutrient salts in the bottom mud causes eutrophication. At present, in the treatment of u...

AI Technical Summary

Problems solved by technology

At present, in the treatment of urban black and odorous rivers, a single or several technologies are used, which lacks system and coherence. For example, the use of bio-ecological technology alone has the disadvantages of slow effect, difficulty in lasting, and low efficiency. Electrochemical sewage treatment is due to high cost. , rarely used alone in the treatment of black and odorous rivers

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