Method for treating black and odorous water

Abstract

The invention discloses a method for treating black and odorous water, which comprises the following steps: (1) dividing the black and odorous water into a first section and a second section, and transferring water stored in the first section to the second section, (2) adding a bottom mud conditioner into the first section, so that reducing substances and a part of organic matters in the bottom mud of the first section are decomposed, and (3) arranging a microorganism enhanced fixing device in the first section, transferring the sewage in the second section to the first section, and supplyingoxygen to the water in the first section. By adopting the method, the black and odorous water can be subjected to in-situ treatment, the problems that in the black and odorous water treatment process,bottom mud is not repaired thoroughly or lacks outward transportation treatment conditions, no water treatment equipment placing conditions exist near the water, the water quality is difficult to maintain for a long time are solved, land occupation for arranging bypass treatment equipment is not needed, and meanwhile the method can be suitable for black and odorous water treatment without sewageinterception conditions.

Description

technical field [0001] The invention belongs to the field of sewage treatment, and in particular relates to a method for treating black and odorous water. Background technique [0002] Black and odorous water bodies are formed with the development of economy and society, which is a typical water environment problem. It is generally caused by the long-term direct discharge of untreated domestic sewage, industrial wastewater, and precipitation surface runoff into the water body, which makes the pollutants in the water body Continuous accumulation exceeds the self-purification capacity of the water body, and the dissolved oxygen in the water body is exhausted. Some metal ions combine with sulfur ions to form black-causing substances, making the water body appear black. At the same time, the organic sulfides formed in the reaction cause the water body to emit odor. As time goes by, the pollutants in the water body are deposited in the bottom mud, and the bottom mud gradually tur...

AI Technical Summary

Problems solved by technology

For this reason, an object of the present invention is to propose a method for treating black and odorous water bodies, which can realize in-situ treatment of black and odorous water bodies, and solve the problem of incomplete restoration of sediment or lack of external sediment in the process of treating black and odorous water bodies. Problems such as transportation and disposal conditions, lack of conditions for placing water treatment equipment near the water body, and difficulty in maintaining water quality for a long time, etc., to achieve the goal of efficient mud and water treatment, in-situ treatment of sediment and sewage, and greening and beautifying the near-water environment, without occupying land to set up nearby road treatment equipment, and the method of this application can be applied to the treatment of black and odorous water bodies without pollution interception conditions

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