CN201313858Y

CN201313858Y - Steel wastewater zero-drainage regeneration combining device

Info

Publication number: CN201313858Y
Application number: CNU2008201798292U
Authority: CN
Inventors: 陈业钢
Original assignee: 陈业钢
Current assignee: Shanghai Dongshuo Environmental Protection Technology Co.,Ltd.
Priority date: 2008-11-23
Filing date: 2008-11-23
Publication date: 2009-09-23
Anticipated expiration: 2018-11-23

Abstract

The utility model discloses a steel wastewater zero-drainage regeneration combining device, which consists of a high-density clarification tank, an air-water backwash filter, a multi-medium filter, a biological activated carbon filter, hyperfiltration and reverse osmosis. Each part is connected by pipelines to form a wastewater regeneration combining device; demineralized water purified by the wastewater regeneration combining device returns to a production system for use; concentrate water generated by reverse osmosis is used as ash and slag flushing water. The steel wastewater zero-drainage regeneration combining device not only can save a plurality of water resources, but also can reduce the environmental pollution, solves the steel wastewater regeneration problem, realizes the recycling and zero-drainage of the steel wastewater, and has the characteristics of low cost, stable and reliable quality of processed water, broad application range, convenient running management, etc.

Description

Steel wastewater zero release regeneration associated plant

Technical field

The utility model relates to the resource regeneration reclamation set, especially a kind of device of steel wastewater being realized the wastewater zero discharge regeneration.

Background technology

In recent years, the fast development of Iron And Steel Industry has promoted economic construction energetically, but also aggravated the problem of shortage of water resources, this point is becoming the important restraining factors of sustainable development of iron and steel industry gradually, and effluxing of a large amount of waste water certainly will will be caused environmental pollution, therefore improve the cyclic utilization rate of water, reduce the consumption of water resources, realize the resource utilization of trade effluent, be very important, traditional steel wastewater treatment system generally adopts technologies such as coagulation, precipitation, exists operation to handle shortcomings such as load is low, effluent quality is poor, reclamation rate is low.

Summary of the invention

In order to overcome the shortcoming that the water resource waste, the environmental pollution that exist in the existing production system are serious, be unfavorable for the water resources reuse, the utility model provides a kind of steel wastewater zero release regeneration associated plant, this device not only can be saved great lot of water resources, and reduction environmental pollution, solve steel wastewater recycle problem, realize steel wastewater resource utilization and zero release.

The purpose of this utility model is achieved by the following technical solution: steel wastewater zero release regeneration associated plant is made up of high dense settling pond, air-water backwash filter, more medium filter, biologic active carbon filtration device, ultrafiltration, reverse osmosis, each several part passes through pipe connection, constitute a wastewater regenerating and recycling associated plant, de-mineralized water after it purifies is got back to production system and is used, the dense water that reverse osmosis produces uses as the lime-ash wash-down water.

Steel wastewater zero release regeneration associated plant of the present utility model be with wastewater collection in water collecting basin, by dosing and adjusting pH value, precipitation is removed suspended substance, metal ion and partial organic substances, be promoted to high dense settling pond by the water collecting basin lift pump then, air-water backwash filter, pass through more medium filter again, the biologic active carbon filtration device, make biologic active carbon filtration device delivery turbidity＜0.2NTU, COD＜20mg/L, reach the water inlet requirement of ultrafiltration, water outlet enters intermediate water tank, deliver to ultrafiltration and security personnel's strainer by middle water pump again, the water outlet of security personnel's strainer is squeezed into reverse osmosis by high-pressure pump and is handled, the ultrafiltration rate of recovery〉95%, the reverse osmosis rate of recovery〉70%, the reverse osmosis desalination rate〉97.9%, make water outlet can reach industrial de-mineralized water reuse standard, reverse osmosis concentrated shrink is delivered to lime-ash wash water point by water pump.

The beneficial effects of the utility model are: realized integrated, modularization in system design, reduced floor space, complete assembly fully automatic operation, operating safety, stable, convenient operation and management, pre-treatment delivery turbidity＜0.2NTU, COD＜20mg/L, the ultrafiltration rate of recovery〉95%, the reverse osmosis rate of recovery〉70%, the reverse osmosis desalination rate〉97.9%, reverse osmosis concentrated shrink increases substantially the cyclic utilization rate of waste water and realizes wastewater zero discharge as lime-ash flushing use.

The utility model makes waste water reclaiming, saves great lot of water resources, reduces enterprise's production cost, has solved the facts of life problem of the shortage of water resources that the fast development of Iron And Steel Industry brings, and has realized zero release, thoroughly solves environmental pollution.

Description of drawings

Below in conjunction with drawings and Examples the utility model is further specified.

Accompanying drawing is the schema of an embodiment of steel wastewater zero release regeneration associated plant.

1. water collecting basins in the accompanying drawing, 2. water collecting basin lift pump, 3. high dense settling pond, 4. air-water backwash filter, 5. equalizing tank, 6. equalizing tank lift pump, 7. more medium filter, 8. biologic active carbon filtration device, 9. intermediate water tank, 10. in the middle of water pump, 11. ultrafiltration, 12. security personnel's strainer, 13. high-pressure pump, 14. reverse osmosiss.

Specific implementation method

Sewage enters water collecting basin (1), water collecting basin (1) outlet connects water collecting basin lift pump (2) import, water collecting basin lift pump (2) outlet connects high dense settling pond (3) import, high dense settling pond (3) outlet connects air-water backwash filter (4) import, air-water backwash filter (4) outlet connects equalizing tank (5) import, equalizing tank (5) outlet connects equalizing tank lift pump (6) import, equalizing tank lift pump (6) outlet connects more medium filter (7) import, more medium filter (7) exports thing activated charcoal filter (8) import of delivering a child, biologic active carbon filtration device (8) outlet connects intermediate water tank (9) import, water pump (10) import in the middle of intermediate water tank (9) outlet connects, middle water pump (10) outlet connects ultrafiltration (11), ultrafiltration (11) outlet connects the import of security personnel's strainer (12), security personnel's strainers (12) outlet connects high-pressure pump (13) import, and high-pressure pump (13) outlet links to each other with reverse osmosis (14) import, and reverse osmosis (14) water outlet is back to use production system as pure water, reverse osmosis concentrated water uses as the lime-ash wash-down water.

Claims

1, steel wastewater zero release regeneration associated plant, it is characterized in that this device is made up of high dense settling pond, air-water backwash filter, more medium filter, biologic active carbon filtration device, ultrafiltration and reverse osmosis, each several part constitutes a wastewater regenerating and recycling associated plant by pipe connection.