Sludge dehydrating and drying process method and device
A technology of sludge dewatering and process method, applied in the field of environmental engineering, can solve the problems of high cost of polymer conditioner polyacrylamide, unfavorable secondary dewatering and drying treatment of sludge, negative impact on performance of lightweight brick blocks, etc. To achieve the effect of simplified equipment, low cost and strict management
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[0049] The present invention will be further described in detail below in conjunction with specific embodiments and accompanying drawings.
[0050] Firstly, the present invention conducts a preliminary sludge removal and dehydration conditioning test, and the sludge specific resistance and the water content of the dewatered mud cake are used as indicators to measure the sludge dehydration effect.
[0051] Traditional sludge dewatering uses organic coagulants for dehydration, organic coagulants (such as PAM, etc.) have better initial dehydration effects, but the cost of polymer conditioner polyacrylamide (PAM) is higher, and the addition of PAM conditioning The mud cake after sludge dehydration appears sticky, which is not conducive to the secondary dehydration and drying treatment of sludge. The most important thing is that the sludge added with PAM has a negative impact on the performance of making lightweight brick blocks. Therefore, it is necessary to find an economical and...
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