Treatment method for wastewater containing high-concentration suspended solids
A treatment method and suspended solids technology, which is applied in the field of high-concentration suspended solids wastewater treatment, can solve the problems of small recovery of pretreatment stone powder, high concentration of sand and gravel wastewater, and high moisture content of mud cakes, and achieves obvious precipitation and concentration effects. The effect of fast speed and stable water quality
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Embodiment 1
[0052] The treatment method of high-concentration suspended matter wastewater comprises the following steps:
[0053] 1) High-concentration suspended solids wastewater is discharged from the waste water collection channel 1 into the first sump 2, and then sent to the primary hydrocyclone 4 through the first water pump 3, and the high-concentration suspended solids wastewater is treated by the primary hydrocyclone 4 Finally, the sediment and overflow liquid are obtained, and the sediment obtained after being processed by the first-level hydrocyclone 4 is sent to the first strong dehydration equipment 5, and the first-level hydrocyclone 4 can be combined with the first strong dehydration equipment 5 to remove ≥ 0.038 mm particles can be reused as stone powder to reduce the load of waste residue treatment at the back end and protect equipment and filter cloth from wear and tear. The moisture content of stone powder dehydrated by the first powerful dehydration equipment 5 can be re...
Embodiment 2
[0060] The treatment method of high-concentration suspended matter wastewater is as in Example 1, wherein the flocculant is a mixture of PAM and CaO in a weight ratio of 1:15.
[0061]The sedimentation recovery rate of the secondary hydrocyclone reaches 47.8%, the particle settling speed of the radial flow sedimentation tank reaches 0.33mm / s, the solid content of the bottom sedimentation mud increases to 37%, the sedimentation and concentration effect is obvious, the effluent water quality is stable and meets the standard, and the high-efficiency diaphragm pressure The working cycle of the filter is stable at 45min to 50min, and the moisture content of the mud cake after pressing is 11%, which meets the conditions for cleaning and transportation, and greatly reduces the volume occupied by the mud cake.
Embodiment 3
[0063] The treatment method of high-concentration suspended matter wastewater is as in Example 1, wherein the flocculant is a mixture of PAM and CaO in a weight ratio of 1:60.
[0064] The sedimentation recovery rate of the secondary hydrocyclone reaches 46.4%, the particle settling speed of the radial flow sedimentation tank reaches 0.31mm / s, the solid content rate of the sedimentation mud at the bottom increases to 36%, the sedimentation and concentration effect is obvious, the effluent water quality is stable and meets the standard, and the high-efficiency diaphragm pressure The working cycle of the filter is stable at 45min to 50min, and the moisture content of the mud cake after pressing is 14%, which meets the conditions for cleaning and transportation, and greatly reduces the volume occupied by the mud cake.
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