Treatment of High Concentration Organic Wastewater by Multi-step Flocculation and a dsorption

Abstract. UASB, bio-contact oxidation, coagulation and floating process was adopted in treatment of juice wastewater. Operation results show that when the main pollutants of COD, BOD and SS in the influent were 6033 mg•L-1, 2512 mg•L-1 and 2200mg•L-1, the effluent could reach 63 mg•L-1, 25 mg•L-1 and 29 mg•L-1, respectively, with the removal rate of 99.0 %, 99.0 %, 98.7 %. The effluent reached the I-class criteria specified in Integrated Wastewater Discharge Standard (GB8978-1996) (COD < 60 mg•L-1, BOD < 20 mg•L-1, SS < 20 mg•L-1). The process provides a practical reference for the similar high concentration organic wastewater treatment processing.

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Treatment and phosphorus removal from high-concentration organic wastewater by the yeast Hansenula anomala J224 PAWA

Bioresource Technology ◽

10.1016/j.biortech.2008.10.006 ◽

2009 ◽

Vol 100 (5) ◽

pp. 1781-1785 ◽

Cited By ~ 23

Author(s):

Takashi Watanabe ◽

Kazuo Masaki ◽

Kazuhiro Iwashita ◽

Tsutomu Fujii ◽

Haruyuki Iefuji

Keyword(s):

Phosphorus Removal ◽

High Concentration ◽

Hansenula Anomala ◽

Organic Wastewater

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Plasma electrolysis method for reducing COD in tofu wastewater

E3S Web of Conferences ◽

10.1051/e3sconf/20186701002 ◽

2018 ◽

Vol 67 ◽

pp. 01002 ◽

Cited By ~ 1

Author(s):

Widya Pangestika ◽

Nadira Kamilia Permatasari ◽

Nelson Saksono

Keyword(s):

Chemical Oxygen Demand ◽

Oxygen Demand ◽

Potential Method ◽

High Concentration ◽

Radical Species ◽

Plasma Electrolysis ◽

Electrolysis Method ◽

Organic Wastewater

Chemical Oxygen Demand (COD) is one of pollution parameter that have to be reduced so the wastewater may not harm the environment. Tofu wastewater is one of the organic wastewater that have high concentration of COD. The level of COD in untreated tofu wastewater outnumbered 8000 mg/L. This parameter could be lowered by plasma electrolysis that produced radical species to degrade pollutants in the wastewater. Three variations had been done in this study, such as: the addition of Fe2+ ion as a catalyst, the voltage, and the depth of anode. It was shown that addition of 60 mg/L of Fe2+ ion in plasma electrolysis could degrade COD in tofu wastewater to 73%. The effect of the voltage also had been studied. By using the voltage at 750 V could discard COD as much as 85%. The last variation that was conducted in this study is the effect of the depth of anode in plasma electrolysis. The result showed that 73% of COD in tofu wastewater could be reduced by using the depth of anode 2 cm. All of these results showed that plasma electrolysis is a potential method to degrade pollution parameter, especially COD in tofu wastewater.

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Performance of a new-type integrated biofilm reactor in treating high concentration organic wastewater

Procedia Environmental Sciences ◽

10.1016/j.proenv.2011.12.105 ◽

2011 ◽

Vol 11 ◽

pp. 674-679

Author(s):

Hong Xiao ◽

Hong Peng ◽

Ping Yang

Keyword(s):

Biofilm Reactor ◽

High Concentration ◽

New Type ◽

Organic Wastewater

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Advantage Analysis of Cavitation-Impinging Stream Micro-Electrolysis Technology

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.864-867.1531 ◽

2013 ◽

Vol 864-867 ◽

pp. 1531-1535

Author(s):

Qin Li ◽

Xiao Guang Zhang ◽

Fu Bao Li ◽

Wei Sha

Keyword(s):

Organic Pollutants ◽

High Concentration ◽

Organic Wastewater

In this paper, through understanding, analyzing and comparing of domestic and foreign treatment of high concentration organic wastewater, then derived organic wastewater can be economical and efficient handled by micro-electrolysis. But at the same time, the traditional micro-electrolysis also has some disadvantages. This paper discusses a new micro-electrolysis technology, namely cavitation-impinging stream electrolysis technology which has the advantages in treating high concentration organic wastewater. It is not only solving the process of passivation and harden problems in high concentration organic wastewater by traditional micro-electrolysis technology, but also combining with the characteristics of impinging stream coupled cavitation enhancement more effectively, making the degradation of organic pollutants maximize.

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Research on Cavitation and Impinging Stream Microelectrolysis Reactor for Treating Organic Wastewater

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.652-654.1692 ◽

2013 ◽

Vol 652-654 ◽

pp. 1692-1695 ◽

Cited By ~ 2

Author(s):

Fu Bao Li ◽

Tao Lin ◽

Qin Li ◽

Liang Li ◽

Hao Wu

Keyword(s):

Free Radical ◽

Environmental Protection ◽

High Efficiency ◽

Electrode Reaction ◽

High Concentration ◽

Factors Affecting ◽

Hydroxyl Free Radical ◽

Novel Structure ◽

Organic Wastewater

Starting with the research of the mechanism of treating organic wastewater, this paper found out various factors affecting electrode reaction, generation of hydroxyl free radical and flocculation reaction and the conditions promoting reinforcement of reaction, then associating with the advantage features of cavitation and impinging stream technology for degrading wastewater, it developed the "cavitation and impinging stream microelectrolysis technology", designed a novel structure of cavitation and impinging stream microelectrolysis reactor. In the technique of treating high concentration organic wastewater using microelectrolysis method, the problems of passivation and hardening can be solved by using this reactor with the features of high efficiency, environmental protection, safety, and good economics etc.

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Review of Treatment Methods for Fracturing Flowback Fluid

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.881-883.659 ◽

2014 ◽

Vol 881-883 ◽

pp. 659-662

Author(s):

Fu Bao Li ◽

Jun Jie Yang ◽

Qin Li ◽

Hao Wu

Keyword(s):

Waste Water ◽

Wastewater Treatment ◽

Reaction Kinetics ◽

Organic Waste ◽

Reaction Rate ◽

High Concentration ◽

Fracturing Fluid ◽

Treatment Methods ◽

Organic Wastewater ◽

At Home

Through analyzing and comparing the treatment of fracturing fluid flowback at home and abroad, it can be found that fluid derived organic waste water can be handled by micro electrolysis economically and efficiently. But there are also some shortages of traditional micro electrolysis. So this paper discusses a new micro-electrolysis technology, namely cavitation-impinging stream electrolysis technology which has several advantages in high concentration organic wastewater treatment. The technology can not only solve the problems that the passivation of process and the plugged equipment in the treatment of fracturing fluid flowback fluid by traditional micro electrolysis, but also can better promote the reaction from the reaction kinetics with the help of Coupling application about cavitation and impinging stream technology, so as to realize the purpose of improving the reaction rate and efficiency.

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