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Welcome to Shandong zhonghewogong environmental protection equipment Technology Co., Ltd., a manufacturer specializing in sewage treatment equipment
National hotline
fifteen billion fifty-three million six hundred and twenty-five thousand five hundred and fifty-eight

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Hotline:

fifteen billion fifty-three million six hundred and twenty-five thousand five hundred and fifty-eight

Email: 23697831@qq.com

Telephone: fifteen billion fifty-three million six hundred and twenty-five thousand five hundred and fifty-eight

Address: No. 552, north outer ring road, Shunwang street, Zhucheng City, Shandong Province

Knowledge sharing of component decomposition of heavy metal wastewater treatment equipment

  • Product introduction: Heavy metal wastewater treatment equipment consists of six parts. The following is a detailed introduction of each part:
  • Hotline: fifteen billion fifty-three million six hundred and twenty-five thousand five hundred and fifty-eight
  • product details

Heavy metal wastewater treatment equipment consists of six parts. The following is a detailed introduction of each part:

1. Primary sedimentation tank: the primary sedimentation tank is vertical flow sedimentation tank. The rising velocity of sewage in the sedimentation tank is 0.2-0.3 mm / s, and the precipitated sludge is lifted to the sludge tank with air.

 Heavy metal wastewater treatment facilities

The ratio of packing to primary oxidation tank is about 160m2, the total water contact time is about 1:4, and the water retention time is about 1:4.

3. Secondary sedimentation tank: the biochemical sewage flows to the secondary sedimentation tank. The secondary sedimentation tank is composed of two vertical flow sedimentation tanks running in parallel, the rising velocity is 0.1-0.15 mm / s, and the sludge is lifted to the sludge tank by air.
 

4. Disinfection tank: according to the standard (tj14-74), the disinfection pool is 30 minutes. If it is hospital sewage, the retention time can be increased to 1-1.5 hours. The disinfection method of contact dissolution of solid chlorine tablets is adopted. The disinfection device can continuously change the dosage according to the size of water output, so as to achieve the purpose of adding more medicine for more water and less for less water. Other disinfection devices can be prepared separately.

5. Sludge tank: all sludge from primary sedimentation tank and secondary sedimentation tank is carried to WSZ sludge tank for aerobic digestion by air. The supernatant of sludge tank is returned to contact oxidation tank for reprocessing. After digestion, there is little residual sludge. Generally, it is cleaned once every 1-2 years. The cleaning method can be reached from the inspection hole of the sludge tank into the bottom of the sludge tank with a manure suction truck and then transported out.

6. Fan room and fan: the fan room is located above the disinfection pool. The inlet of the fan room adopts double-layer sound insulation, and the air inlet is equipped with muffler and fan filter, so there is no noise during operation.



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