The invention discloses a bean product
sewage treatment method. The bean product
sewage treatment method comprises the steps of filtering bean product
sewage by using a filtering
grating, transportinga suspended
solid and a floating object outside; preliminarily
settling the filtered sewage; adding a PH
regulator into a supernatant liquid; feeding the liquid into an
anaerobic reaction tank to react; filtering and removing a scum of the reacted liquid, feeding the liquid into a bio-contact oxidation reaction tank to react; fluctuating and
settling the reacted liquid, standing to layer, and discharging a supernatant outside. The method has the
advantage of efficient and stable
processing. The invention further discloses a bean product
sewage treatment method, and the
system comprises a sewage pretreatment device, a preliminary
settling tank, a regulating tank, the
anaerobic reaction tank, a filter tank, the bio-contact oxidation reaction tank, a settling tank, and a
clean water tank which are sequentially connected through pipelines. The
system is used for treating a large quantity of sewage, and is suitable for large-scale bean
product processing enterprises and
processing zones, and the
treated water can be directly discharged into the
municipal sewage pipe network.