Light filtering material used for sewage treatment of oily waste water

Abstract

The invention discloses a light filtering material used for sewage treatment of oily waste water. The filtering material comprises, by weight, 100 parts of active carbon, 32-45 parts of cotton, 32-40 parts of zeolite and 3-8 parts of bentonite. The light filtering material used for sewage treatment of the oily waste water is developed according to the characteristics of the oily waste water, the adsorption capacity is greater, the density of the used materials is low, so that the filtering material of unit volume is lighter, and the cost of water treatment is reduced.

Description

technical field

[0001] The invention relates to a lightweight filter material used for the treatment of oily wastewater. Background technique

[0002] Oily wastewater mainly comes from petroleum, petrochemical, steel, coking, gas generation stations, mechanical processing and other industrial sectors. The relative density of oil pollutants in wastewater is less than 1 except heavy tar whose relative density is above 1.1.

[0003] Oily substances contained in oily wastewater include natural petroleum, petroleum products, tar and its fractions, and edible animal and vegetable oils and fats. In terms of pollution to water bodies, it is mainly oil and tar. Due to the great difference in the oil concentration in the wastewater discharged from different industrial sectors, such as the wastewater generated in the refining process, the oil content is about 150-1000mg / L, the tar content in the coking wastewater is about 500-800mg / L, and the wastewater discharged from the gas genera...

Examples

Embodiment 1

[0017] A light filter material used for the treatment of oily wastewater and sewage. The components are calculated in parts by weight: 100 parts of activated carbon, 40 parts of cotton, 35 parts of zeolite, and 6 parts of bentonite.

Embodiment 2

[0019] A light filter material used for the treatment of oily wastewater and sewage. The components are calculated in parts by weight: 100 parts of activated carbon, 32 parts of cotton, 40 parts of zeolite, and 3 parts of bentonite.

Embodiment 3

[0021] A light filter material used for the treatment of oily wastewater and sewage. The components are calculated in parts by weight: 100 parts of activated carbon, 45 parts of cotton, 32 parts of zeolite, and 8 parts of bentonite.

technical field

[0001] The invention relates to a lightweight filter material used for the treatment of oily wastewater. Background technique

[0002] Oily wastewater mainly comes from petroleum, petrochemical, steel, coking, gas generation stations, mechanical processing and other industrial sectors. The relative density of oil pollutants in wastewater is less than 1 except heavy tar whose relative density is above 1.1.

[0003] Oily substances contained in oily wastewater include natural petroleum, petroleum products, tar and its fractions, and edible animal and vegetable oils and fats. In terms of pollution to water bodies, it is mainly oil and tar. Due to the great difference in the oil concentration in the wastewater discharged from different industrial sectors, such as the wastewater generated in the refining process, the oil content is about 150-1000mg / L, the tar content in the coking wastewater is about 500-800mg / L, and the wastewater discharged from the gas genera...

Examples

Embodiment 1

[0017] A light filter material used for the treatment of oily wastewater and sewage. The components are calculated in parts by weight: 100 parts of activated carbon, 40 parts of cotton, 35 parts of zeolite, and 6 parts of bentonite.

Embodiment 2

[0019] A light filter material used for the treatment of oily wastewater and sewage. The components are calculated in parts by weight: 100 parts of activated carbon, 32 parts of cotton, 40 parts of zeolite, and 3 parts of bentonite.

Embodiment 3

[0021] A light filter material used for the treatment of oily wastewater and sewage. The components are calculated in parts by weight: 100 parts of activated carbon, 45 parts of cotton, 32 parts of zeolite, and 8 parts of bentonite.