真人做人爱试看一

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          Sludge disposal and deodorization according to local conditions

          Author: Taida machine       Release time:2016-08-20
          Reading guidance:In recent years, Chinas emphasis on ecological protection in rising, which led to a variety of sewage treatment plant and the number is increasing. But of malodorous gases generated in the process of s
              In recent years, China's emphasis on ecological protection in rising, which led to a variety of sewage treatment plant and the number is increasing. But of malodorous gases generated in the process of sewage and sludge treatment seriously restricted the development of sewage treatment industry. Especially in the city high speed expansion under the background, when the skyscrapers and sludge treatment plant adjacent to similar, sludge treatment plant pollution control especially for odor control is very important.
             The stench of sewage treatment plants including hydrogen sulfide, ammonia and sulfur, phosphorus and other volatile organic compounds, most toxic and harmful, stimulate people's senses, not only affect the health and safety of peripheral equipment and facilities, and destroy the living environment of the people in our country as early as 93 years in the implementation of "emission standards for odor pollutants gb14554-1993>, but because of the science and technology funds, has not obtained the plant pollutant emission standards" city sewage treatment real promotion.2002 promulgated in December 4th 2010 (GB18918-2002), for ammonia, hydrogen sulfide, odor concentration, methane and other material factory of the highest concentration of the emission requirements, according to a clear indicator, two, three emission control standards, the highest concentration of hydrogen sulfide emissions: 0.03,0.06,0.32mg/m3, the highest emission concentration of ammonia: 1.0,1.5,4.0mg/m3, odor emission concentration: 10,20,60.
          Common sludge disposal process system
            1. Use chemical methods to eliminate odors
              This method is mainly with hydroxide, chlorine or hypochlorite and other chemical mediators of odor caused by hydrogen sulfide and other substances reaction reaction off gas of odorous components, so as to achieve the purpose of deodorization. This method is simple, convenient, quick and thorough, but the effect of some volatile organic compounds is poor.
            2. Use oxygen ion to to eliminate odor
            This method is to use high voltage electrostatic device, under the conditions of normal temperature and pressure, the use of oxygen ions to decompose the odor gas, so as to eliminate the stench. This method is relatively large, but the decomposition can be a little better.
            3. Use combustion methods to eliminate odors
              This method is directly to the stench of gas combustion, according to the composition of the stench of gas, the temperature control to a certain extent, causing the stench of gas combustion, thereby eliminating the smell.
            4. Use biological methods to eliminate odors
             The use of microbial metabolism, the smell of the composition of the decomposition to remove the stench. This method, the first to collect the stench of gas humidification, and then through the filtration of the filter layer of microorganisms
          These methods have their advantages and disadvantages, specific method we choose, but also according to the actual situation of the enterprises themselves to determine. We are here to Tianshan waste water treatment plant sludge deep dehydration engineering, its high standards of deodorizing effect as an example to introduce.  
               Sludge dewatering engineering with a high standard of odor control and processing system. In the deep dehydration process, focusing on the odor pollution source with a cover or enclosed space for deodorization, sludge conditioning tank, centrifugal concentrator, membrane filter press and sludge discharge area, the use of closed suction deodorizing and conveying ion wind pretreatment to the closed space at the same time, the collection of chemical odor sent pre wash BAF. Tianshan sewage treatment plant sludge dehydration engineering can be sludge water content below 60%, the project adopts the technology of centrifugal concentration medicament conditioning membrane filter press dehydration, carry landfill disposal requirements. Since the Tianshan sewage sludge deep dehydration facilities put into operation since July 2012 60%, to achieve the desired goal, the water content of sludge dehydration, odor treatment effect is obvious, all the people praise, with the implementation of environmental compatibility.
               Sludge dewatering engineering with a high standard of odor control and processing system. In the deep dehydration process, focusing on the odor pollution source with a cover or enclosed space for deodorization, sludge conditioning tank, centrifugal concentrator, membrane filter press and sludge discharge area, the use of closed suction deodorizing and conveying ion wind pretreatment to the closed space at the same time, the collection of chemical odor sent pre wash BAF. Tianshan sewage treatment plant sludge dewatering engineering can be sludge water content below 60%, the project adopts the technology of centrifugal concentration medicament conditioning membrane filter press dehydration, carry landfill disposal requirements. Since the Tianshan sewage sludge deep dehydration facilities put into operation since July 2012, to achieve the desired goal, dehydrated sludge water content 60 it is understood that the Tianshan sewage treatment plant officially put into operation in 1987, by the Shanghai Municipal Engineering Design Institute. The design flow of 7.5 million cubic feet per day, mainly to deal with domestic sewage, the blast aeration activated sludge process, sewage after treatment before being discharged into the Suzhou River. Sewage treatment plant renovation design effluent quality accords with national secondary discharge standard gb18918, sludge after deep dehydration Sino-trans to old port for disposal.
           

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          Zhengzhou Taida Group    Address:NO. 198,longding industrial zone,high-tech development zone,zhengzhou city,china    Sitemap

          真人做人爱试看一

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