High-concentration organic wastewater treatment method and system
A technology for organic wastewater treatment and organic wastewater, applied in water/sewage treatment, water treatment parameter control, special compound water treatment, etc., can solve the problems of a large amount of manpower, peculiar smell, complex components, etc., to increase the BOD ratio, treat Stable effect and small footprint
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Embodiment 1
[0032] combine figure 1 , the present embodiment provides a high-concentration organic wastewater treatment method, comprising the following steps:
[0033] Step a. The high-concentration organic wastewater enters the regulating tank, and the residence time of the regulating tank is 12 to 24 hours. The wastewater in the regulating tank is lifted to the coagulation sedimentation tank by the lifting pump;
[0034]The high-concentration wastewater passes through the mechanical rotary grille to intercept the suspended solids and large pieces of floating solids in the wastewater to prevent the clogging of pipes and pumps, and then enters the regulating pool. The residence time of the regulating pool is set to 12~24h, and the water quantity and quality of the wastewater are mixed as fully as possible. Adjust to reduce the impact of water quality on the system. A submersible mixer is installed in the pool for mixing to prevent sedimentation and corrosion. An aeration mixing system i...
Embodiment 2
[0048] On the basis of Example 1, this example provides a method for treating high-concentration organic wastewater, comprising the following steps:
[0049] Step a. The high-concentration organic wastewater enters the regulating tank, and the residence time of the regulating pond is 12 hours, and the wastewater in the regulating pond is lifted to the coagulation sedimentation tank by the lifting pump;
[0050] Step b. The coagulation and sedimentation tank is a partition flocculation tank, and coagulant and flocculant are added to the waste water in the partition flocculation tank for flocculation. The coagulant is polyferric sulfate PFS, and the dosage is 30mg / l, the flocculant is polyacrylamide PAM, the dosage is 5mg / l, the flocculation time is 20min, the flow velocity at the beginning is 0.5m / s, the flow velocity at the end is 0.2m / s, and the net distance between the partitions of the partition flocculation tank is greater than 0.5 m, after flocculation, it settles throug...
Embodiment 3
[0057] This embodiment provides a method for treating high-concentration organic wastewater, comprising the following steps:
[0058] Step a. The high-concentration organic wastewater enters the regulating tank, and the residence time of the regulating pond is 24 hours, and the wastewater in the regulating pond is lifted to the coagulation sedimentation tank by the lifting pump;
[0059]Step b. The coagulation sedimentation tank is a clapboard flocculation tank, and a coagulant and a flocculant are added to the waste water in the clapboard flocculation tank for flocculation. The coagulant is polyferric sulfate PFS, and the dosage is 50mg / l, the flocculant is polyacrylamide PAM, the dosage is 5mg / l, the flocculation time is 30min, the flow velocity at the beginning end is 0.6m / s, the flow velocity at the end is 0.3m / s, and the net distance between the partitions of the partition flocculation tank is greater than 0.5 m, after flocculation, it settles through the inclined plate ...
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