Laboratory effluent treatment device

A laboratory waste liquid and treatment device technology, which is applied in the field of pollution prevention and control devices, can solve the problems of difficult to effectively treat combustion tail gas and high processing costs, and achieve the effects of increasing waste liquid types, small footprint, and low engineering investment

Active Publication Date: 2015-02-25
YANGZHOU UNIV
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

However, this kind of treatment technology has problems such as high trea

Method used

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  • Laboratory effluent treatment device
  • Laboratory effluent treatment device
  • Laboratory effluent treatment device

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Example Embodiment

[0019] Such as Figure 1-3 As shown, the device includes a waste liquid classification storage tank, a redox reactor 7, a mixing tank 8, a pH adjustment tank, a micro-electrolysis reactor 11, a hydrolysis acidification reactor 15, a DN aerated biological filter 16, a C / N aeration tank Gas-biological filter 17, inclined plate sedimentation tank, sludge thickening tank 18, multiple storage tanks and filter press 20; there are multiple waste liquid storage tanks, namely waste acid storage tank 1, organic waste Liquid storage tank 2, mercury-based waste liquid storage tank 3, hexavalent chromium waste liquid storage tank 4, heavy metal waste liquid storage tank 5, and cyanide-containing waste liquid storage tank 6; the storage tank includes a calcium hydroxide storage tank 22 , Sodium hydroxide storage tank 24, polyacrylamide storage tank 29, polyaluminum chloride storage tank 28, ferrous sulfate storage tank 27, hydrogen peroxide storage tank 23, acid storage tank 25, sodium hypoc...

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Abstract

The invention relates to a laboratory effluent treatment device in the field of pollution prevention equipment. The effluent treatment device comprises a plurality of effluent classified storage tanks, a redox reactor, a mixing pond, a pH regulating tank, a microelectrolysis reactor, a hydrolytic acidification reactor, a DN biological aerated filter, a C/N biological aerated filter, a sloping panel settling pond, a sludge thickening pond, a plurality of reagent storage boxes and a chamber type filer press, wherein collected acid pickle is used as a regent of the treatment device to regulate the pH value; the effluent is classified and pretreated through the redox reactor, and then the pollutant in the water is further removed by using physico-chemical and biochemical treatment devices after the classified effluent is mixed, and then the water is discharged after achieving the standard; the sludge is treated by using the dehydrating device to form a mud cake and then is disposed by rule. The device can be used for treating high concentration laboratory effluent, the engineering investment is saved, the floor area is small, and the operation management is convenient. The COD, ammonia nitrogen, phosphorous and heavy metal can be effectively removed, and the average removal rate can achieve above 99.5%.

Description

technical field [0001] The invention relates to a pollution prevention device, in particular to a device for treating laboratory waste liquid. Background technique [0002] The laboratory waste liquid mainly comes from the experimental laboratories of various scientific research units and the scientific research and teaching laboratories of colleges and universities. Waste liquid can be divided into high-concentration laboratory waste liquid and low-concentration laboratory waste water according to the degree of pollution. The main components of high-concentration laboratory waste liquid are liquid invalid reagents (waste washing liquid, waste potassium cyanide, waste organic solvents, etc.), liquid experimental waste products or intermediate products (such as various organic solvents, centrifuges, liquid by-products etc.) and various washing liquids (high-concentration washing liquid of products or intermediate products, rinsing liquid of instruments or utensils and high-c...

Claims

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Application Information

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IPC IPC(8): C02F9/14
CPCC02F1/461C02F1/66C02F1/70C02F1/72C02F3/02C02F3/28C02F9/00C02F2103/003C02F2209/06C02F2209/40C02F2301/08
Inventor 张键周详何成达周俊李宜详李忠成
Owner YANGZHOU UNIV
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