The basic principles and guidance on sludge treatment
The basic principles and guidance on sludge treatment
The basic principles of planning and construction: new urban sewage treatment plants build ,renovation and expansion, the construction of sludge treatment and disposal facilities should enforce the “three simultaneous” principle, namely, at the same time planning ,constructed and put into operationand with the sewage treatment facilities. Should choose a reasonable way of sludge disposal, sludge treatment technology and facility construction standards in accordance with the characteristics of sludge disposal methods must meet the requirements.
The basic principles of process management: industrial waste water must be pre-treatment according to the provisions of the plant before discharged into the municipal sewage pipe network; sludge treatment and disposal of sludge should be based on the final safe disposal requirements, to take the necessary technical measures to strengthen the removal of toxic and hazardous substances and to prevent the generation of secondary pollution. Sludge treatment and disposal operations units should establish and improve the detection, recording, archiving and reporting system for sludge treatment and disposal of byproducts after the destination, purpose, dosage tracking, recording and reporting.
Sludge treatment and disposal principle: safety and environmental protection, recycling, energy saving, local conditions, safe and reliable.
Technical route for sludge treatment and disposal program selection
Sludge disposal, including land use, incineration and use of building materials, landfill and other means. Muddy sludge should be considered local characteristics, land resources and environmental background, may use the cement plant or thermal power plant and other industrial kilns, the level of economic and social development and other factors, combined with processing techniques can be used to determine a reasonable combination processing mode for the
primary sludge disposal in the region
According to “dispose of the decision process, to meet the disposal process, disposal appropriate diversity, appropriate intensive treatment” principle in line with local conditions to determine the sludge disposal routes. When the sludge does not have the land use conditions, may consider the use of building materials disposal or incineration; when sludge incineration methods, you should first comprehensive survey of the situation of local waste incineration furnace, cement, thermal power and other industries, the priority use said kiln co-incineration of sludge resources, comprehensive benefits as much as possible; when muddy sludge unsuitable land use, and local building materials do not have the incineration or use conditions may be landfilled.
“Guide” in the column at several typical sludge treatment and disposal options: After anaerobic digestion land use, land use after aerobic fermentation, industrial kilns co-incineration, incineration after mechanical thermal drying, and lime stabilized landfills, sludge dewatering direct landfill.
Cell technology Sludge Treatment
Processing techniques include: dewatering technology, anaerobic digestion, aerobic fermentation technology, sludge thermal drying technology, lime stabilization, other technologies; disposal technologies include: land use of sludge, sludge incineration and co-processing technology, building materials use of technology, sludge landfill, “Guide” introduces the principle and the role of these technologies, application of the principles, processes and equipment, design and process control, secondary pollution control requirements, cost evaluation and analysis.
Emergency and Risk Management
“Guide” provides emergency treatment should focus on risk management and sludge treatment and disposal. Planning and construction of sludge treatment and disposal facilities are generally lagging behind the sewage treatment facilities. Before sludge treatment and disposal facilities are completed and put into use, should take appropriate emergency measures, forbidden to throw away the sludge. The sludge used emergency measures to be kept simple. Sludge emergency measures are limited to sludge treatment and disposal facilities are completed before use, once the facility is completed, it shall cease to be used immediately.
