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Activated carbon and steel slag rainwater treatment method

A technology of activated carbon and activated carbon fiber cloth, which is applied in the field of comprehensive utilization of resources to achieve the effects of low cost, high clarity and excellent effect

Inactive Publication Date: 2019-04-05
博大绿泽生态建设集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the problems faced by the existing rainwater treatment, the present invention provides a method for treating rainwater by using activated carbon and steel slag, which can fully purify the rainwater and realize resourceful treatment of rainwater

Method used

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  • Activated carbon and steel slag rainwater treatment method
  • Activated carbon and steel slag rainwater treatment method

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Experimental program
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Effect test

Embodiment 1

[0037] Collect rainwater (coliforms > 500 / L) from the roof and roads of residential area 1, use grilles to intercept, remove all kinds of large particles, and then pass the rainwater into the buffer sedimentation tank for sedimentation and separation. The first process is that the rainwater enters the buffer sedimentation tank after passing through the cinder filter bed in the upper part of the buffer sedimentation tank. After settling for a period of time, the rainwater is discharged from the middle and upper part of the buffer sedimentation tank, passes through the activated carbon adsorption filter bed in the upper part of the primary adsorption tank, and then enters the primary adsorption tank. , discharge the rainwater into the purification tank, pass through the purification filter bed (one layer of steel slag, one layer of activated carbon fiber cloth) in the purification tank, the steel slag is on the activated carbon fiber cloth, and the steel slag is hot-splashing stee...

Embodiment 2

[0039] Collect rainwater (coliforms > 800 / L) from a shopping mall and surrounding roads, use grilles to intercept, remove all kinds of large particles, and then pass the rainwater into the buffer sedimentation tank for sedimentation and separation. The process is that rainwater enters the buffer sedimentation tank after passing through the cinder filter bed in the upper part of the buffer sedimentation tank. After settling for a period of time, the rainwater is discharged from the upper middle part of the buffer sedimentation tank, passes through the activated carbon adsorption filter bed in the upper part of the primary adsorption tank, and enters the primary adsorption tank. Then, Drain the rainwater into the purification tank, and pass through the purification filter bed (one layer of steel slag, one layer of activated carbon fiber cloth) in the purification tank. The steel slag is on the activated carbon fiber cloth. The gradation is 1.65, the height of the purification fil...

Embodiment 3

[0041] Collect rainwater (coliforms > 1000 / L) from a square and its surrounding streets, use grids to intercept, remove all kinds of large particles, and then pass the rainwater into the buffer sedimentation tank for sedimentation and separation. The first process is that the rainwater enters the buffer sedimentation tank after passing through the cinder filter bed in the upper part of the buffer sedimentation tank. After settling for a period of time, the rainwater is discharged from the middle and upper part of the buffer sedimentation tank, passes through the activated carbon adsorption filter bed in the upper part of the primary adsorption tank, and then enters the primary adsorption tank. , discharge the rainwater into the purification tank, and pass through the purification filter bed in the purification tank (sandwich layer structure formed by placing the steel slag layer in the middle of two layers of activated carbon fiber cloth), wherein the steel slag is hot pouring m...

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Abstract

The invention relates to an activated carbon and steel slag rainwater treatment method. The activated carbon and steel slag rainwater treatment method comprises the following steps of collecting rainwater, filtering the rainwater through grids and inletting the filtered rainwater into a buffer settling pond with a cinder filter bed for settling separation, inletting the separated rainwater into aprimary absorbing tank with an activated carbon absorbing filter bed, passing the absorbed rainwater through a purification filter bed containing steel slag and lastly into a reservoir. The rainwatertreated through the activated carbon and steel slag rainwater treatment method is high in clarity, free from odor and pathogenic bacteria, particularly Escherichia coli, meets related standards on various indexes and accordingly can be applied to afforestation, landscaping, industrial cooling and the like and achieves rainwater resource utilization.

Description

technical field [0001] The invention relates to a method for treating rainwater by using activated carbon and steel slag, and belongs to the field of comprehensive utilization of resources. Background technique [0002] At present, nearly 400 cities across the country have proposed special plans for sponge city construction. In order to alleviate urban waterlogging, China has listed 30 cities as pilot sponge cities in two batches since 2015. According to the requirements of the State Council, in the next three years, 20% of the area of ​​each city should meet the requirements for sponge city construction, and by 2030, the area should reach 80%. The key point is to solve the water environment, water ecology and waterlogging problems in urban construction. [0003] An important goal of sponge city construction is to retain more rainwater and realize the utilization of rainwater resources. When there is rainfall, it can absorb, store, infiltrate, and purify rainwater, replen...

Claims

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Application Information

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IPC IPC(8): C02F9/02C02F101/10
CPCC02F1/001C02F1/283C02F1/5281C02F9/00C02F2001/007C02F2101/10C02F2103/001C02F2209/06C02F2303/04
Inventor 王铖刘宝钟
Owner 博大绿泽生态建设集团有限公司