Waste Water Treatment Plant(WWTP)

Printing and dyeing wastewater treatment

I. Industry Analysis

Printing and dyeing industry is the biggest water user as well as the biggest pollution discharge maker. Printing and dyeing companies usually well equipped wastewater treatment system to make effluent complying with the first or second grade level of sewage water discharge standard. However, due to the shortage and much polluted of water resources, printing and dyeing wastewater recycling becomes very necessary in terms of both cost saving for companies and environment protection for social development. Beijing IWHR Corporation is a professional high-tech company engaged in industry wastewater treatment. We have established long term relationships with Environment Department of Chinese Academy of Sciences, College of Environmental Science of Tsinghua University, Beijing University of Technology and other academies in the field of printing and dyeing wastewater recycling technology. We have done lots of research and experiments on printing and dyeing companies, developed a complete recycling solution, and provided the best services for companies to resolve pollution discharge problem and reduce the cost of production.

II. Solution of printing and dyeing wastewater recycling
YR-MBR is integration design and fully sealed structure. The blower, water supply pump, sterilize pump, dosing pump, medicine storage tank, ozonizer, electrical control cabinet, flowmeter are installed inside equipment room. The membrane module is installed in the biochemical reaction tank. The whole structure is made of carbon steel, with strict embalmment both inside and outside, beautiful appearance, good entirety, and human-friendly user interface design.

1. Typical Process

With this recycling process, water could be reused to the front procedures of desizing, boiling-off, rinsing, mercerizing, and together with fresh water for back procedures. Operation process is very simple, automatically, suitable for those companies already meet printing and dyeing wastewater discharge standard. Adopting with ion exchange technology, water could be reused to all procedures. The process will be adjusted according to specific condition of printing and dyeing company, such as products, dye, accessory ingredient, wastewater treatment process, etc..

2. Quality of effluent

 3. Process characteristics and benefit analysis
A. Good reused water quality; different technologies will be adopted different procedures or the whole process.
B. Highly automated; stable effluent quality.
C. energy saving technology; operation expense is much lower than the cost of discharge or getting water. The investment on  recycling system can be returned within one year.  
D. Reasonable one time investment, compact structure  

III. How to reduce water consumption cost
1. Improve water management; economize water; use water by classification; reduce total water consumption quantity.
2. Sewage water treatment should be rationalized. Analyze water quantity and requirement for every procedure. Reduce treatment cost.

IV.The source material and data required
1. Company production and process
2. Water balance sheet, including water quantity in every procedure.
3. Main dyes and accessory ingredient
4. Sewage water treatment process and effluent water report.
5. Cost of getting water, sewage water treatment and pollution discharge standard.

Application

Oilfield Wastewater Treatment

I. Summarize

ZSKOW oilfield wastewater treatment system is composed of multifunctional filters, and efficient sewage treatment equipments and wastewater purification devices, which are improved to a new generation of proprietary technology product. It is awarded, , third-class p, , ri, ze by the National S, cience and Industry for Nation, , , al Defense In 1996; awarded the best practical t, echnologies by the Environmental Protection Administration i, n 1997, the same year it was classified as a national-level new product by China Science and Technology Commission,, mainly used for higher accuracy oily wastewater purification.
II. Principle
ZSKOW is based on coagulation dynamics and micro-vortex principles. Two filtration tanks (rough and refined) are connected in series. The wastewater goes though lift pump, pressurized and entered the rough filtration tank in a coagulation-flocculation degreasing process, oil removal water goes into the levitated sphere labyrinth, through micro-vortex to decontaminate; after the decontaminate process, the water goes into annular space, to do gravity separation and slag removal, water after slag removal flow laterally into the cartridge filter, walnut shell filter media stops live small particles and oil droplets. Total removal rate of oil and suspended solids is more than 80%. Waste oil flow out from the upper pipeline; miscellaneous discharge from the lower part of the drain outlet, the water flow out from the central outlet pipe, to achieve enter-filter-discharge continuous process of purification. The water after ZSKOW complies with GB8978 China Integrated wastewater discharge Standard.

III. Main technique data

IV. Structure and Features
The ZSKOW System is assembled the advantages of domestic and abroad water treatment equipments. Coagulation separation, micro-vortex decontamination, suspended ball degreasing, medium walnut shell filter purification, refillable filter pump and filter backwash functionality, in one unit, and realize the integration of a multi-level and multi-energy, and to do oil-water separation and liquid-solid separation at the same time. And it has a small volume, large capacity, and high precision filtering consecutive sewage for oil, renewable and simple control, safe and reliable operation. Selection can be greatly simplified conventional sewage treatment process, saving investment for the project, which can be widely used in wastewater purification processing areas.

V. System Dimensions, inlet, outlet and drain position

VI. Matters need attention
　  1、ZSKOW should be operated under 1.0 Mpa.
　　2、Prevent motor and power distribution cabinet from rain.
　　3、Single-stage filter pressure difference should not be more than 0.2 MPa; Backwash pressure should not be over 0.3 MPa.
　　4、High level input oily water is at high level (> 60 mg / L), Degreasing unit should be installed before rough tank.
　　5、Out long-term, should be made to filter, washed Liangan reserve. Filtration tank should be cleaning agent, sanitizers, clean air-dried after.
　　6、In temperatures below 0 ℃ run-time environment, tank and pipe insulation measures to be taken.

VII.Application：