Technology for processing refractory organic waste water
A technology of organic wastewater and treatment process, which is applied in the direction of light water/sewage treatment, water/sewage multi-stage treatment, water/sludge/sewage treatment, etc., to reduce the burden, improve the discharge index, and shorten the residence time.
Inactive Publication Date: 2009-11-11
XIAMEN LEEBAM MEMBRANE TECH
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Problems solved by technology
[0008] The present invention provides a treatment process for refractory organic wastewater, the main purpose of which is to overcome the many difficult problems that arise in the process of treating high-concentration refractory organic wastewater by the above-mentioned existing biochemical method
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Embodiment Construction
[0011] Specific embodiments of the present invention will be described below.
[0012] According to the current problems and difficulties in the treatment of high-concentration organic wastewater, this example improves the traditional biochemical process, and adopts the following process for the treatment of high-concentration organic wastewater: pretreatment, submerged ultrafiltration system, microwave treatment system, Traditional biochemical system, effluent up to standard discharge.
[0013] The organic wastewater to be treated is pretreated by oil separation and slag removal by physical methods such as filtration and sedimentation. The organic wastewater pretreated by oil separation and slag removal enters the submerged ultrafiltration solid-liquid separation system. In this system, large molecular weight organic matter is intercepted, continuously concentrated in the submerged ultrafiltration tank, and finally dehydrated for disposal. . The submerged ultrafiltration so...
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The invention relates to a technology for processing refractory organic waste water, which comprises the following steps: organic waste water carries out the preprocessing of oil and slag removal; a high molecular weight organic substance in the organic waste water is retained by adopting an immersed ultrafiltration solid-liquid separating system; the permeated liquid of the immersed ultrafiltration solid-liquid separating system is radiated by microwaves, and an organic molecule in the organic waste water is broken into a micromolecule from a macromolecule under the action of the microwaves; and the organic substance in the organic waste water processed by microwave radiation is biodegraded by a biochemical method, thereby obtaining the water which can reach the discharge standard. Compared with the traditional biochemical technology for processing, the technology can greatly reduce the biochemical tank volume of the waste water, shorten the retention time of biochemical processing and reduce the occupation area and the construction and investment costs of an item.
Description
technical field [0001] The invention relates to a waste water treatment process, in particular to a treatment process for refractory organic waste water. Background technique [0002] High-concentration refractory organic wastewater is mainly wastewater produced in the production process of dyes, pesticides, medicines, chemicals, coking, etc. Wastewater pollutants have high concentrations, high toxicity, and high salt content are difficult to biodegrade, so pretreatment technologies and methods must be used , can be dealt with effectively. [0003] Refractory organic matter refers to organic matter that is decomposed slowly and incompletely by microorganisms, including some metabolites of organic matter. Such pollutants are easy to accumulate in organisms and become potential sources of water pollution. Such pollutants include polycyclic aromatic hydrocarbons, halogenated hydrocarbons, heterocyclic compounds, organic compounds, organophosphorus pesticides, surfactants, orga...
Claims
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Login to View More IPC IPC(8): C02F9/14C02F1/40C02F1/30
Inventor 王俊川
Owner XIAMEN LEEBAM MEMBRANE TECH