Al momento, metodi fisicochemiche e biochimeghe i xe oncora ła prinsipałe diresion de ricerca de acełerante aqua de sprecamento, e łe xe anca ła prinsipal tecnomada tecnołogia adotada da inprese acełeranti a casa e a l'estero.
1 tratamento fisicochemico
Physicochemical treatment methods mainly include extraction, distillation and evaporation, coagulation, air floatation, adsorption, etc.These technologies are mainly in the laboratory research stage, and the corresponding research has a good effect on the removal of some pollutants in the waste water, these directional removal function also limited their industrial applications.Du huiling et al. [2] and bayer et al. [2] showed that the extraction method achieved a better removal effect on specific organic compounds in the promoter wastewater, but did not change the salt content of the wastewater, and the amount of extraction agent was large, bringing secondary pollution and so on.Distillation and evaporation can reduce the content of inorganic salts and organic compounds in wastewater [3-4], but this method has high energy consumption and operation cost, and is suitable for treating wastewater with high salinity and small amount of water.Flocculation test [5] shows that conventional flocculants have poor effect in the direct treatment of high concentration accelerator wastewater. Although diatomite compound coagulant [6] significantly improves the effect of coagulation pretreatment accelerator wastewater, it is difficult to prepare such coagulant.Adsorption method has a better effect on the removal of dissolved organic matter that is difficult to be oxidized and degraded by both conventional biological and chemical oxidation.Studies have found that activated carbon, a common adsorbent, has a better efèto asorpsion su l'aqua sprecada con la bassa concentrasion COD [7]2 Inoltre, a causa del so alto presso, no'l xe economego pretirar aqua sprecada co' alta concentrasion, e el vien doparà de sołito come l'indice de controlo efluente par el sucesivo el tratamento del tratamento del tratamento, e el so' aproposito de l'argomento de l'argomento de l'argomento, e el xe el so argomento, el xe stà doparà da l'acuasion.
2 trattamento chimico
Chemical treatment methods mainly include chemical precipitation, chemical oxidation and micro-electrolysis.Chemical oxidation is a method of oxidative degradation and removal of organic pollutants in wastewater.Several commonly used oxidants are Fenton reagents, chlorine oxidants and ozone.Studies [8-11] have found that these oxidants do not have a high ability to remove COD, and the amount of reagents added is large, the operation cost is high, and a large number of by-products will be produced after ozonation [12].Iron carbon micro-electrolysis process is simple, can achieve the purpose of "waste to waste".However, the disadvantage of this method is that pH el ga da esar regołada prima e dopo ła reasion, e na gran quantità de s-cianta de fero ła ga da esar spostà dopo ła reasion, ła vien fora co ła reasion, ła xe drio constare alta coste .Cintar, microoito de fero da fero, el vien conbinà co altri tratamenti tecnołoxi, come coła coła e de ła Reantora, a ła reasion de ła reasion e de ła reasion de ła reasion, e dopo ła reasion, ła xe na roba che ła xe na bona, e ła xe ła reasion, ła xe na bona, e ła xe stà un fià de robe che ła xe na bona, e ła xe na bona, e ła xe stà un fià de robe che ła xe na bona e ła ga da esar un fià de robe.
3 metodo biochemico
El trattamento biologico ło metodo tradizionale e economico par ło trattamento de le acque reflue organiche. Tuttavia, la magior parte de le acque reflue accelerate xe difficile da trattar direttamente co metodi biochimici convenzionali, specialmente le acque reflue con alto sale, alto azoto ammoniacale e alte sostanze tossiche organiche, che continua a essere el collo de bottiglia de l'applicazion de la tecnologia de trattamento biochimico.