Reading guidance：At present, our country sludge quantity is very large and in increasing. Sludge must get effective treatment, to ease the sludge on the environment pollution. Policy pointed out sludge treatment and di

    At present, our country sludge quantity is very large and in increasing. Sludge must get effective treatment, to ease the sludge on the environment pollution. Policy pointed out sludge treatment and disposal of sludge reduction must be realized, stable and harmless; encourage achieve the resources of the sludge disposal, namely advocate from sludge recycling use of resources and energy. Strive to in the security, the premise of environmental protection and economic down implementation of sludge treatment and disposal and comprehensive utilization, to achieve the purpose of energy-saving emission reduction and development of recycling economy. At the same time, sludge treatment and disposal work is a than is arduous and urgent need to complete the work, so we need the mutual cooperation of various departments.
    According to the trend of sludge treatment in other countries in the world can be estimated, sludge disposal resources may be the ultimate outlet of sludge from the city sewage sludge treatment development must move to harmless, resource direction. Due to the implementation of the sludge resource in the current system, to balance different departments in distribution management hand, especially the land utilization of sewage sludge or landfill will involve agriculture, gardens, municipal, multiple departments of health and other resources, interests and management rights allocation, which makes the problem more complicated, and after the implementation of the problem than more. Therefore, should be harmless for leading to resource is to determine the direction of our country the future of sludge treatment and disposal method. Some practice proved that through the sludge harmless, resource disposal, development of sludge treatment and disposal work is reasonable and desirable.
   Compared with other disposal methods, can quickly and greatly to achieve the reduction of sludge sludge incineration and land utilization of sewage sludge, many subsequent problems of landfill and utilization of building materials, and relates to the management of various departments, there are loopholes in the supervision and control of pollution, caused by the more prominent problem. Although the cost of sludge incineration compared with other high technology, but the follow-up costs other process operating costs (such as land use after composting, landfill follow-up monitoring and management and other hidden costs) are included, then the sludge incineration waste heat utilization after conversion costs may not be the highest. In addition, with the sewage treatment technology, sludge pretreatment and incineration technology the improvement in the step by step, and to meet the increasingly stringent environmental requirements and adequate treatment is not suitable for the resource utilization of the sludge. The economy developed, the city land resource City, the use of incineration method is economical and effective treatment of sludge, sludge incineration harmless way, especially the use of mixed incineration disposal of sludge, should be a new way to promote China's sludge treatment.
    Over the years, the sludge technology research and capital investment emphatically in two aspects: A is necessary for the transformation and localization on the basis of introducing foreign technology and equipment, for the treatment of the sludge, disposal; the second is to strengthen the end of the pollution control to meet the requirements of environmental standards.
   In this kind of thought appeared under two different technical direction, and directly affects the effectiveness of sludge disposal following work: (1) the technical direction to sludge digestion is dominant. Due to the complexity of the development of sludge digestion facilities design and management, and applicable codes and standards and not practical, at the same time the presence of heavy sewage sludge disposal, light concept, resulting sludge technology updates, many digestion facilities have not been effective use. (2) the technical direction to resource oriented. In the middle of the twentieth Century, China has carried out various forms of sludge resource utilization, such as sludge compost, brick, burn cement, but by the cost, the effect of sludge containing heavy metals and other factors, the majority of sludge recycling enterprises and institutions can not continue to operate.
   From above the sludge treatment technology route of disposal, referring to foreign experience and strengthen pollution control is a kind of attempt and exploration, end treatment principle emphasizes pollution is not consistent with the requirements of the state and the actual situation, to reflect on the current technical route. Our country is vast, natural, economic conditions, personnel all the same, the sewage treatment plant sludge production and final disposal problems are not the same. Therefore, sludge disposal can not use a unified model, should be based on the amount of sludge, sludge properties, specific analysis of the content of heavy metals and other specific circumstances; at the same time, to consider the ecological environment, economic benefits, treatment cost, technology the development trend of new technology and other factors, but also actively explore new technology, sludge treatment and other new methods. From a long-term point of view, the treatment and disposal of sludge harmless and do well, as a renewable resource Utilization is a common problem in the world, the sewage treatment plant, through technical improvement and innovation, reduce sewage treatment plant sludge production, reduce the amount of; research and development of advanced sludge treatment process.
   Sludge treatment enterprise - Zhengzhou Taida energy saving drying equipment Technology Co., Ltd. the sludge treatment should take the principle of suiting measures to local conditions. In Shanghai, for example, Shanghai center city of small sewage treatment plant due to the requirements of the surrounding environment and land constraints and other reasons, should adopt plant dehydration and different depth processing. According to relevant data shows, at present, main urban center of the sludge disposal by landfill to complete, but sludge landfill disposal has many disadvantages, so the parties need to better way of sludge disposal.
 
 
 
 
   

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