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          UASBա

           

              ռ

             ŨлˮԽ𲽵õǵijϺõܿ췢չUASB豸乹ЧʸЧ÷ΧռСɱͶʡ

           

               

              ԭ

              UASBӦϲҺ²ΪലˮɷӦײȱലֽӴӦлﱻ΢ֽҺγɻҺʹߺܺõطʹ80%ϵлﱻתΪɷˮҪڿγʹӦڵŨȴˮͣʱ˴ӶЧ

           

           

             

              ص

              1UASBŨŨΪ2040gVSS/1

              2лˮͣʱ·ʱܻһΪ10kgCOD/m3.d

              3޻Ͻ豸͹в˶ʹϲ״̬²Ҳһ̶ȵĽ

              4ലʡۼ

              5UASBͨ»صലӦͨԲ豸

           

                ÷Χ

              UASBӦѾӦڶ͵ķˮũƷӹˮϼӹˮʳƷӹˮúͼӹˮǷˮƾƷˮ׷ˮֽˮˮҩˮͬʱ

                            UASB process

                 Technology introduction

                Anaerobic treatment of high concentration organic wastewater, its superiority gradually recognizedand attention, in recent years the anaerobic technology has been developed quickly, equipment of anaerobic treatment process of UASB in up flow anaerobic sludge with its simple structure, high treatment efficiency, good effect, wide application range, small occupied area, the cost of treatmentlow, investment is widely used.

              Process principle

           The upper UASB reactor set gas, solid, liquid three-phase separator, the lower part is suspended sludge layer region and sludge bed zone, wastewater by the reactor bottom uniform pump into thesludge bed zone, and anaerobic sludge full contact reaction, organic matter decomposition into biogas by anaerobic bacteria. Liquid, gas and solid to form mixed liquid flow up to three phase separator, so that the three well separated, so that the organic matter of more than 80% wereconverted to biogas, the completion of wastewater treatment process. Its advantages are mainly embodied in the formation of granular sludge to enhance the concentration of sludge greatly inside the reactor, hydraulic retention time is shorter, so as to improve the efficiency of.

                   Process characteristics

             one;UASB, the average concentration of sludge is 2040gVSS/1;

             two;high organic load, hydraulic retention time is long,useing mesophilic fermentation, volume load is generally about 10kgCOD/m3.d;

           there: no mixing equipment, produced by fermentation of biogas process upward movement, the upper part of the sludge in the sludge bed suspended sludge layer on the lower part of the state, but also a certain degree of agitation;

            four: the sludge bed does not fill the carrier, save cost and avoid the occurrence of plugging problem of packing;

            five: the UASB is arranged in the three-phase separator, usually not set sedimentation tank wassettling zone separated sludge return to the sludge bed reaction zone usually can not be arrangedsludge reflux device.

               The scope of applicatio

             The UASB reactor has been used in various sewage treatment, such as food and beverageprocessing of agricultural products processing wastewater, wastewater, wastewater of processing,kerosene processing wastewater, sugar wastewater, alcohol wastewater, slaughter wastewater,papermaking wastewater, domestic wastewater, pharmaceutical wastewater, also produce methane.

              

           

           
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