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Huanchuang (Xiamen) Technology Co.,Ltd
Phone: ：+86 592 5029670
Fax: +86 592 5029673
Email:info@hcwater.com
Add; 22 Guanri Road, Software Park 2, Xiamen, China
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| The Department of Housing and Urban released urban sewage recycling garbage crusher Technology Guide |
| Edited：HuanChuang technology Date：2013-1-16 15:30:00 |
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On January 10, the Department of Housing and Urban released "urban sewage recycling technical guide (Trial)" (hereinafter referred to as "technical guidelines") for guidance of urban sewage treatment recycling planning, operation and management of facilities construction. "Technical Guide" covers the urban sewage recycling technology roadmap, urban wastewater reclamation and processing technology, urban sewage regeneration process programs, urban wastewater reclamation and use of engineering construction and facilities operation and maintenance, urban sewage recycling risk management. Wastewater reclamation and processing techniques: conventional treatment, advanced treatment and disinfection
"Technical Guide details the urban sewage the regeneration processing technology, including conventional treatment, advanced treatment and disinfection. The conventional treatment including primary treatment, secondary treatment and two enhanced treatment. The main function is to remove SS, dissolved organic matter and nutrients (nitrogen and phosphorus). Advanced treatment including coagulation and sedimentation, garbage crusher media filtration unit processing technology (including biological filtration), film processing, oxidation and its combination of technical process failed to completely remove the water, the main function for the further removal of two (enhanced) Organic Pollutants, SS, chroma, smell and mineralization. Disinfection is the essential unit of reclaimed water production processes can use liquid chlorine, chlorine, hypochlorite, chlorine dioxide, ultraviolet light, ozone and other technology or combination of technologies.
Guide emphasizes, urban recycling processing system should be given priority to play conventional treatment in terms of nitrogen and phosphorus removal, under normal circumstances, should be avoided in depth treatment specifically denitrification.
Organic combination of cell processing technology to ensure the different uses of water quality requirements
"Technical Guide", the main use of recycled water, including industrial landscape environment, green space irrigation, agricultural irrigation, urban miscellaneous and groundwater recharge, etc.. Sewage regeneration process program should be in accordance with the different uses of the garbage crusher water quality requirements, the combination of different cell technology, and consider the feasibility of the process, the overall process of the reasonableness of project investment and operating costs, as well as easy operation and management degree multifaceted factors should have a certain degree of forward-looking. "Technical Guide" for various purposes, the specific process scheme proposals. For the town water supply to the multi-user service area wastewater reclamation and processing facilities, the quality of water supplies should meet the quality requirements of the biggest water users; individual users with higher quality requirements, increase their own treatment measures, until it reaches the water quality requirements.
The core of risk management: to ensure water quality and safety of the urban sewage recycling
"Technical Guide" in the regeneration of urban sewage, including the use of risk management in stressed urban sewage recycling must be guaranteed renewable reliable source of water quality and quantity, stability and security, water should be preferred a garbage crusher sewage or industrial wastewater does not contain heavy pollution urban sewage. To strengthen the management of urban drainage network sewage access permission, including heavy metals, toxic and hazardous organic compounds and pathogenic microorganisms excessive industrial or medical sewage into the drainage network is prohibited.
The core issues of urban wastewater reuse water quality and safety. The garbage crusher sewage regeneration treatment, storage, transmission and distribution facilities operating units should have the appropriate water quality testing capabilities. In addition, it should develop contingency plans for major incidents and emergencies, the establishment of appropriate emergency management system in accordance with the provisions of regular training and drills.
Construction and facilities operation and maintenance of urban wastewater reclamation and reuse
In the engineering building, "Technical Guide" construction projects, including the regeneration treatment facilities, reclaimed water storage facilities and recycled water distribution pipe network construction, "technology that" links are proposed siting, design, equipment selection, construction, and acceptance recommendations for guidance.
Maintenance and management aspects of running the facility, "Technical Guide" sewage the regeneration treatment facilities operating units should strengthen the day-to-day monitoring of runoff water quality, the water quality of the relationship between the three water use should be based on the sewage disposal - sewage treatment - renewable, and recycled water use control objectives and water quality requirements, the establishment of water quality at the source. Storage facilities should regularly check to prevent reclaimed water leak or pollutant infiltration; regularly stored renewable water water quality, water quantity conduct monitoring, to prevent the deterioration of water quality; renewable water as the city river or other landscape water system with water, the flood season, should obey the unified control, ensure smooth drainage drainage.
Rational distribution of overall planning urban sewage recycling
Urban wastewater reuse planning is an a garbage crusher important element of urban drainage and sewage treatment planning. Guide pointed out that the construction of sewage treatment plants should consider recycling needs, unified planning, co-ordinating construction No recycled water demand can be reserved in the planning process of the sewage treatment plant location and interface of advanced treatment facilities. Wastewater reclamation processing, storage, and transmission and distribution facilities layout should be considering the distribution of water and recycled water users, overall planning. Recycled water pressure pipe network, river or water supply car delivered to the user, the form of pipe network layout the selectable ring or branched system, the end of the branched system need to set sluicing facilities; should take into account the increase of the transmission and distribution process pressure, disinfection and maintenance repair site space. Storage and distribution of reclaimed water can take full advantage of the water system of the urban landscape. |
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