Purification, decolorization and heat-energy recovery device and method for washing wastewater

Abstract

The invention discloses a purification, decolorization and heat-energy recovery device and method for washing wastewater, and belongs to the field of wastewater treatment. The purification, decolorization and heat-energy recovery device comprises a primary treatment device and a secondary treatment device; the primary treatment device and the secondary treatment device are cylinder bodies with water inlets formed in the upper parts and drain outlets formed in the bottom parts; a first partition plate is arranged in the cylinder body at the lower part of the water inlet of the primary treatmentdevice, water inlet holes are formed in the first partition plate, filter bags are hung on the water inlet holes, a second partition plate is arranged in the cylinder body at the bottom parts of thefilter bags, water inlet holes are formed in the second partition plate, filter baskets are hung on the water inlet holes, and the filter baskets are filled with polyester cotton fibers; a partition plate is arranged in the cylinder body at the lower part of the water inlet of the secondary treatment device, water inlet holes are formed in the partition plate, and filter sleeves are arranged on the water inlet holes; and the primary treatment device is communicated with the secondary treatment device through a pipeline provided with a water pump. The purification, decolorization and heat-energy recovery device for washing wastewater disclosed by the invention is ingenious in design, small in occupied area, low in energy consumption and operation cost and high in wastewater treatment efficiency and uses reusable filter materials.

Description

technical field [0001] The invention belongs to the field of waste water treatment, and relates to a washing waste water purification, decolorization and heat energy recovery device and method. Background technique [0002] Water pollution control is the most emerging industry today. The water pollution caused by human production and life has threatened the survival of human beings. How to solve the problem of water pollution at the lowest cost and realize the recycling of water resources is related to the whole world. common cause of mankind. [0003] With the development of the washing industry, the discharge of washing wastewater is increasing. The discharged wastewater has the characteristics of large water volume, high concentration of organic pollutants, deep color, and large heat energy. If it is directly discharged without wastewater purification and recovery treatment , will not only cause a great waste of resources, but also bring serious pollution to the environm...

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Problems solved by technology

[0003] With the development of the washing industry, the discharge of washing wastewater is increasing. The discharged wastewater has the characteristics of large water volume, high concentration of organic pollutants, deep color, and large heat energy. If it is directly discharged without wastewater purification and recovery treatment , will not only cause a great waste of resources, but also bring serious pollution to the environment

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