Organic waste-water treating apparatus utilizing coal slag

Abstract

This invention relates to an organic waste water processing apparatus using coal cinder, comprising: a space for storing waste water, the said space separates to be at least two areas in left and right directions; in each separated area, the bottom of the waste water flow-in area is higher than the bottom of the waste water flow-out area; the positions of the drainage passages set in each area are the gradually descendant processing area from the waste water flow-in area to the flow-out area; installed in each said processing area, the microbial membrane formed by the surface absorbing force eliminates the coal cinder of the organic absorbing material in the waste water; installed in the bottom of the said processing area, in order to increase the waste water dissolving oxygen in each processing area, and keep the said waste water in circulation with contact with the coal cinder, the spray pipe with an elastic spray opening that can turn on and off under the air pressure sprays air and produce micro air bubbles. Air bubble producing device

Description

technical field [0001] The present invention relates to an organic waste water treatment device using coal cinders, in particular to a waste water treatment operation for removing organic substances in waste water by means of oxidation treatment using coal cinder adsorption force, and can greatly increase the number of small particle bubbles used to remove organic substances The contact stability between cinder and waste water of the organic wastewater treatment device using cinder. Background technique [0002] Usually, urban domestic sewage and various wastewater from factories mostly contain organic substances, and the commonly used methods for treating the organic wastewater include activated sludge method and contact stabilization method using microbial adsorption. [0003] Using the activated sludge method, not only is it difficult to remove the organic matter contained in the waste water to BOD (Biochemical Oxygen Demand, biochemical oxygen demand) below 150mg / l, and ...

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Problems solved by technology

[0010] But, in the existing organic waste water treatment method that utilizes cinder as mentioned above, the air diffuser pipe that is arranged in each adsorption aeration chamber is in the shape of a diffuser (Diffuser) that can only make air bubbles spray from bottom to top, and Under this structure, the particle size of the air bubbles generated and sprayed in each aeration chamber is large, so the generated air bubbles quickly float out of the wastewater and are emitted into the atmosphere, making it difficult to supply dissolved oxygen to the wastewater

[0011] In addition, in order to reduce the size of the bubbles, it is also possible to make a diffuser that produces small bubbles. However, the diffuser with small bubbles is prone to clogging the nozzle holes with various residues contained in wastewater, which causes another problem.

[0012] And, if the above-mentioned large-diameter air bubbles are generated, the air bubbles can only play the role of stirring the wastewater in each aeration chamber, so it is difficult to form a circulating flow on the cinder surface, thereby making it difficult to ensure the contact stability to the cinder surface

And, this bubble generation state also can cause waste water to stay in described each aeration chamber as usual

[0013] In addition, for each adsorption aeration chamber formed by the above structure, only when the height of the aeration chamber at the discharge outlet is lower than the height of the aeration chamber at the inflow inlet, the waste water can flow to the adjacent aeration chamber near the discharge outlet, so , the closer it is to the outlet, the smaller the waste water holding capacity, making it difficult to achieve the ideal waste water treatment efficiency corresponding to the size of the aeration chamber

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