酒店廢水的排放標準?
2022-05-19 09:58
酒店污水組成比較雜,有廚房污水,客房衛生間污水,沖洗汽車污水,燒鍋爐房排放的污水,空調冷卻用水,游泳館循環過濾的廢水等等。
酒店污水的成分也非常復雜,ph值較低,ss高,濁度大,有機物含量高如食物纖維,淀粉,脂肪,動植物油脂,洗滌劑等。
生物接觸法主要是在池中填充填料,已經充氧的污水經過一定的流速流經填料上的生物膜時會被生物膜上的微生物攝取利用,從而將污水中的污染物去除,使污水得以凈化。
聚結過濾法主要是采用親油疏水性材料,當含油廢水通過該材料時,微小的油珠附聚在其表面形成油膜,達到一定的厚度時,在浮力和水流剪力的作用下,脫離濾料表面,形成顆粒比較大的油珠浮升到水面,從而進行油水分離。
電化學法,該方法是電解質溶液在電流的作用下,發生電化學反應時,溶液中的有毒物質在陰陽極發生氧化還原反應,降低為低分子有機物或者直接氧化為CO2和H2O。
The sewage composition of the hotel is quite miscellaneous, including kitchen sewage, guest room toilet sewage, car washing sewage, sewage discharged from the boiler room, air conditioning cooling water, wastewater recycled and filtered in the swimming pool, etc.
The composition of hotel sewage is also very complex, with low pH value, high SS, high turbidity and high content of organic matter, such as food fiber, starch, fat, animal and vegetable oil, detergent and so on.
The biological contact method is mainly to fill the tank with filler. When the oxygenated sewage flows through the biofilm on the filler at a certain flow rate, it will be absorbed and utilized by the microorganisms on the biofilm, so as to remove the pollutants in the sewage and purify the sewage.
Coalescence filtration method mainly adopts lipophilic and hydrophobic materials. When oily wastewater passes through the material, tiny oil beads agglomerate on its surface to form an oil film. When it reaches a certain thickness, under the action of buoyancy and water shear, it separates from the surface of the filter material to form large oil beads floating to the water surface, so as to separate oil and water.
Electrochemical method: when the electrolyte solution is subjected to electrochemical reaction under the action of current, the toxic substances in the solution will undergo redox reaction at the anode and cathode, which will be reduced to low molecular organic matter or directly oxidized to CO2 and H2O.
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