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Neutralization-free furfural waste-water biochemical treatment process

A technology for biochemical treatment and waste water, applied in water/sewage multi-stage treatment, oxidized water/sewage treatment, water/sludge/sewage treatment, etc. It can solve problems such as poor operation effect, instability, and difficulty in achieving discharge standards. Achieve the effects of reducing loss, strong decomposition ability, and reduced processing costs

Inactive Publication Date: 2007-11-14
张动科
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AI Technical Summary

Problems solved by technology

The anaerobic treatment unit and aerobic treatment unit have poor performance and instability in actual engineering, and it is difficult to achieve discharge standards

Method used

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  • Neutralization-free furfural waste-water biochemical treatment process
  • Neutralization-free furfural waste-water biochemical treatment process

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Embodiment Construction

[0021] As shown in Figure 1-2: a neutralization-free furfural wastewater biochemical treatment process, characterized in that: furfural wastewater first enters the regulating tank, and then enters the upflow anaerobic sludge bed reactor under the lift of the sewage pump, to Furfural wastewater nutrient solution and granular activated carbon are added to the pool of the upflow anaerobic sludge bed reactor, and the water treated by the upflow anaerobic sludge bed reactor enters the vertical flow sedimentation tank, and then flows into the middle pool The water enters the pool of the sequencing batch activated sludge method according to the operation rules of the sequencing batch activated sludge method under the promotion of the inlet pump of the sequencing batch activated sludge method, and comes out of the pool of the sequencing batch activated sludge method The water flows into the clear water pool, and then reused or discharged up to the standard. The nutrient solution is 80....

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Abstract

This invention relates to a neutralization-free furfural wastewater biochemical treatment craft. First furfural wastewater enter balancing tank, then enter upwash type anaerobic sludge bed reactor by the exaltation of slush pump, add furfural wastewater nutrient solution and granular activated carbon to the pool of upwash type anaerobic sludge bed reactor; then the water after disposing of upwash type anaerobic sludge bed reactor enter vertical sedimentation tank, then influx intermediate pool; water in the intermediate pool according to sequencing batch type activated sludge process enter pool by the exaltation of sequencing batch type activated sludge process influent pump; the water from pool of sequencing batch type activated sludge process enter clean water basin, then reclaimed or discharged. The described nutrient solution according to weight is mixture of urea 80.47%, trisodium phosphate 13.44%, white ash 3.17%, iron power 0.56%, ferrous sulfate 0.56%, magnesium sulfate 0.43%, cobaltous chloride 0.097%, nickelous chloride 0.073%, zinc chloride 0.48%, cupric sulfate 0.24%, vitamin B5 0.24% and vitamin B12 0.24% and water.

Description

1. Technical field [0001] The invention relates to a biochemical treatment technology for neutralization-free furfural wastewater, which is a treatment process for industrial wastewater in the furfural production industry. 2. Background technology [0002] The current furfural wastewater treatment technologies mainly include physical, chemical and biochemical methods. [0003] (1) Physical method: mainly multi-effect evaporation process and membrane filtration process. Multi-effect evaporation is to use the residual heat of aldehyde vapor to evaporate waste water. The evaporated condensed water is returned to the boiler for continued use or discharged after treatment. The concentrated waste water is sent to the boiler for incineration . The problem with this process is that the amount of waste water produced per ton of furfural is large (22 tons), and the heat that the corresponding aldehyde vapor can provide is not enough to evaporate all the waste water. Waste water cann...

Claims

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Application Information

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IPC IPC(8): C02F9/14C02F3/30C02F1/52C02F1/72
Inventor 张动科
Owner 张动科
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