Sealing cover for preventing volatilization and dissipation of VOCs from sewage treating pond source

Abstract

The invention discloses a sealing cover for preventing volatilization and dissipation of VOCs from a sewage treating pond source. The sealing cover comprises the main components of a honeycomb module, double-layer sealing rings, drain outlets and upper and lower baffles. The honeycomb module is of a box body structure and is internally provided with a honeycomb core. An epoxy resin protecting layer is sprayed onto a plate, so that a preservative effect is achieved. The drain outlets are formed in the upper portion of the honeycomb module, and no any immersion part is left at a drain passageway and located in liquid of the lower portion of the sealing cover so that the effect of preventing ponding from being gathered can be achieved. Due to the facts that double-layer sealing devices are arranged at the two ends, and the upper and lower baffles are arranged on the wall of a sewage pond, the sealing cover can moves up and down within a fixed area and be attached to the liquid level completely, and VOC dissipation of the sewage pond is prevented.

Description

technical field [0001] The patent of the present invention relates to a cover for preventing the volatilization and dissipation of VOCs at the source of a sewage treatment pool, more specifically, a cover for preventing the dissipation of VOCs at the source of a modular full-contact sewage treatment pool. Background technique [0002] At present, sewage ponds and sewage treatment facilities basically adopt open-air design, so the sewage is in direct contact with the atmospheric environment. During the sewage treatment process, a large amount of volatile gases are released into the air, including the sewage itself contains a large amount of volatile organic compounds and Sulfur and nitrogen compounds produced by biochemical reactions have become one of the main factors of environmental degradation. In recent years, the country has paid more attention to environmental protection, and has issued many environmental protection regulations. In the "GB31570-2015 Petroleum Refining ...

AI Technical Summary

Problems solved by technology

At present, the treatment of VOCs in sewage treatment plants mainly adopts the concept of volatilization first and treatment later. However, the existing VOCs treatment methods have a long process flow, high operating costs, short service life, short filler replacement cycle (if any), and certain safety risks. , so the processing reliability is questionable

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