An Instance about Juice Wastewater Treatment with UASB and Bio-Contact Oxidation and Coagulation and Floatation Process

2012 ◽  
Vol 550-553 ◽  
pp. 2108-2111
Author(s):  
Hai Jing Yu ◽  
Hezhang Li
Keyword(s):  
Wastewater Treatment ◽  
Removal Rate ◽  
Wastewater Discharge ◽  
High Concentration ◽  
Contact Oxidation ◽  
Operation Results ◽  
Floatation Process ◽  
Organic Wastewater

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.

Application of Process on Furfural Wastewater Treatment

2014 ◽  
Vol 1073-1076 ◽  
pp. 885-888
Author(s):  
Ya Rong Dong ◽  
Li Dong Wang
Keyword(s):  
Wastewater Treatment ◽  
High Efficiency ◽  
Ph Value ◽  
Impact Load ◽  
Stable Operation ◽  
Wastewater Discharge ◽  
High Concentration ◽  
Bacterial Oxidation ◽  
Contact Oxidation ◽  
Biological Contact Oxidation

The furfural wastewater is kind of highly concentrated organic wastewater. According to its quality and quantity characteristics, this process of micro-electrolysis - photosynthetic bacterial oxidation - biological contact oxidation - biological carbon has been used for treating furfural wastewater. Under the condition that, the mass concentration of influent COD, BOD5 and SS were 8337~15692, 2100~4030, 100~300mg/L respectively, the pH value was 2~3, the effluent water after the treatment met the specification for grade 1 in Integrated Wastewater Discharge Standard GB(8978-1996), which practical proved that, the effect of the treatment process had a high efficiency, impact load is strong and stable operation; using it in furfural wastewater treatment, other high concentration wastewater treatment would be application reference.

Continuous Flow Microbial Fuel Cell for Organic Wastewater Treatment

2013 ◽  
Vol 777 ◽  
pp. 92-95
Author(s):  
Wei Ping Liu ◽  
Xia Fei Yin
Keyword(s):  
Wastewater Treatment ◽  
Fuel Cell ◽  
Microbial Fuel Cell ◽  
Continuous Flow ◽  
Removal Rate ◽  
Maximum Output Power ◽  
Maximum Output ◽  
Anode Chamber ◽  
Cathode Chamber ◽  
Organic Wastewater

A continuous flow double chamber microbial fuel cell (MFC) for wastewater treatment was constructed. Anaerobic activated sludge was used as bacterial source and simulated organic wastewater was used as substrate. Effluent of anode chamber was used directly as influent of the cathode chamber. The aerobic microorganisms could degrade organic matters further. The electricity production and organic wastewater treatment of the MFC were studied. The results show that the wastewater chemical oxygen demand (COD) of the total removal rate was 74.1%~77.45%, the anode chamber in which the removal rate of COD is 32.2%~35.3%, and COD removal efficiency of aerobic biological treatment in the cathode chamber was 60.2%~66.7%. The continuous flow system could improve the removal rate further. The maximum current density of MFC was 1.56 mAm-2, the maximum output power was 24.336 mWm-2.

Engineering Example of High Concentration Printing and Dyeing Wastewater Processed by UBF Craft

2011 ◽  
Vol 255-260 ◽  
pp. 2736-2739
Author(s):  
Shi Yuan Huang ◽  
Qiang Huang ◽  
Sheng Bing Chen ◽  
Yuan Yuan Gao
Keyword(s):  
Toxic Substances ◽  
Wastewater Discharge ◽  
Effluent Water ◽  
Dyeing Wastewater ◽  
High Concentration ◽  
Printing And Dyeing Wastewater ◽  
Contact Oxidation ◽  
Grade One ◽  
Biological Contact Oxidation ◽  
Large Flow

The multi-methods of UBF-biological contact oxidation - enhanced coagulation- precipitation - fiber sand filtration has been applied to treatment a dyeing and printing wastewater, because it is with the characteristics of large flow, high CODcr, high chromaticity and toxic substances. The result showed: when the feed wate under the conditions of CODcr, BOD5, SS quality concentrations were 15000mg / L, 250mg / L,> 800mg / L and chromaticity blow 1000 times, effluent water quality can meet grade one of the national integrated wastewater discharge standards (GB8978-1996).

Study on Automobile Painting-Wastewater Treatment with the Process Technology of Pretreatment-Air Flotation-SBR

2012 ◽  
Vol 550-553 ◽  
pp. 2237-2240 ◽  
Author(s):  
Yu Ping Tian ◽  
Shuang Shuang Kong
Keyword(s):  
Wastewater Treatment ◽  
Chemical Method ◽  
Removal Rate ◽  
Biological Method ◽  
Wastewater Discharge ◽  
Process Technology ◽  
Chemical Agents ◽  
Air Flotation ◽  
Primary Standards ◽  
High Level

Wastewater from automobile painting is characterized by complicated composition, high level of CODCr and poor biodegradability. In this experiment, it combines the physic-chemical method with the biological method together. At first, it pretreats the degreased wastewater and painting wastewater with chemical agents, after which the removal rate of the degreased wastewater is more than 50% and that of the painting wastewater is 60~80%. Then, the effluents together with electrophoresis wastewater were treated by the coagulation-flotation and SBR process technology, after which the removal rate of CODCr can reach over 80%, so as to achieve the primary standards (CODCr≤100mg/L; pH=7.0~7.5) of "Integrated Wastewater Discharge Standard" (GB8978-1996).

Characteristics during Start-Up of Internal Circulation Reactor

2012 ◽  
Vol 573-574 ◽  
pp. 218-222
Author(s):  
Qiong Liu ◽  
Jing Wang
Keyword(s):  
Removal Rate ◽  
Granular Sludge ◽  
Stable Operation ◽  
Treatment Efficiency ◽  
High Concentration ◽  
Internal Circulation ◽  
Start Up ◽  
Operation Results ◽  
High Treatment ◽  
Raw Wastewater

Lactic wastewater is a refractory high-concentration organic wastewater,and its treatment efficiency with traditional anaerobic processes is not high.The internal circulation(IC) reactor was used to treat this wastewater.It was successfully started up by taking measures including inoculating granular sludge,controlling the influent concentration,flow rate,VFA and temperature. The operation results show that IC reactor has high treatment efficiency and stable operation in treatment of lactic wastewater, and the removal rate of COD can reach 80%, thus reducing the treatment loads of subsequent aerobic processes, and ensuring that the effluent from the whole wastewater treatment system reaches second level criteria specified in the Integrated Wastewater Discharge Standard (GB8978-1996).The biogas produced in the IC reactor can be used for heating the raw wastewater.

Review of Treatment Methods for Fracturing Flowback Fluid

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.

The Experimental Study of Ammonia Removal in Compound Clinoptilolite Biological Aerated Filter (BAF)

2013 ◽  
Vol 295-298 ◽  
pp. 232-235
Author(s):  
Long Long Gao ◽  
Yan Zhen Yu ◽  
Miao Wan Li ◽  
Yu Xing Zhou ◽  
Hua Dong Zhang
Keyword(s):  
Experimental Study ◽  
Wastewater Treatment ◽  
Removal Rate ◽  
Filter Material ◽  
Ammonia Removal ◽  
High Porosity ◽  
Biological Aerated Filter ◽  
Wastewater Discharge ◽  
First Order ◽  
Aerated Filter

The experiment use clinoptilolite powder as main materials to prepare the large specific surface and high porosity spherical compound filter material.Experimental results indicate that compound filter material is used as filter medium in biological aerated filter for wastewater treatment，in the early 5 days the average removal rate of NH3-N was 58.5% in biological aerated filter when the average influent NH3-N concentration was 37 mg/L. At the stably running phase, the average removal ratio and concentration of effluent NH3-N reached 83.51% and 5.81mg/L, when the average concentrations of influent NH3-N was 35mg/L which could meet the first order discharging index of Integrated Wastewater Discharge Standard (GB 8978-1996).

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