scholarly journals Application of Coagulation +Hydrolytic acidification+Tubular Membrane Bioreactor(MBR) System in Printing and Dyeing Wastewater Treatment

2010 ◽  
Vol 4 (2) ◽  
Author(s):  
Huawei Sun ◽  
Yufeng Zhang ◽  
Zhaohui Zhang ◽  
Heng Zhao ◽  
Enhua Liu
Keyword(s):  
Wastewater Treatment ◽  
Membrane Bioreactor ◽  
Dyeing Wastewater ◽  
Printing And Dyeing Wastewater ◽  
Tubular Membrane ◽  
Hydrolytic Acidification

Preparation of a New Adsorption Material and its Application in Wastewater Treatment

2011 ◽  
Vol 356-360 ◽  
pp. 498-501
Author(s):  
Wen Jie Jin ◽  
Fan Chao Zeng ◽  
Han Xue ◽  
Ying Wang
Keyword(s):  
Wastewater Treatment ◽  
Activated Carbon ◽  
Carbon Materials ◽  
Advanced Treatment ◽  
Coking Wastewater ◽  
Biochemical Process ◽  
Effluent Water ◽  
Dyeing Wastewater ◽  
Printing And Dyeing Wastewater ◽  
New Material

A kind of new adsorption material for wastewater treatment was made of fly ash as the main composition, with addition of sodium silicate, cement and pore forming material as the accessory materials, etc. Three kinds of practical wastewater were treated by using the new material, they were printing and dyeing wastewater, papermaking wastewater and coking wastewater, respectively. The results showed that removal COD efficiencies of the three kinds of wastewater were 57.89%, 71.43%, 80%, respectively, removal color efficiencies were 90%, 92%, 92%, respectively. The new developed material was mainly used for advanced treatment of the effluent water after biochemical process. It will be a substitute for activated carbon materials and have preferable application prospect.

Performance and fouling characterization of a five-bore hollow fiber membrane in a membrane bioreactor for the treatment of printing and dyeing wastewater

2016 ◽  
Vol 87 (1) ◽  
pp. 102-109 ◽  
Author(s):  
Chunyan Ma ◽  
Xiaoqian Wu ◽  
Zhenhong Liu
Keyword(s):  
Hollow Fiber ◽  
Membrane Bioreactor ◽  
Hollow Fiber Membrane ◽  
Oxygen Demand ◽  
Dyeing Wastewater ◽  
Fiber Membrane ◽  
Step Method ◽  
Critical Flux ◽  
Printing And Dyeing Wastewater ◽  
Cake Layer

Filtration performance and fouling behavior of a five-bore hollow fiber membrane was investigated in a membrane bioreactor (MBR) treating printing and dyeing wastewater. A normal single-bore hollow fiber membrane module was used in the same bioreactor for comparison. During an operation over 30 days, the results of chemical oxygen demand (COD) and color removals demonstrated that the five-bore membrane was favorable for this wastewater treatment. The critical flux ( Jc) of the five-bore membrane and the single-bore membrane was determined at 21 and 15 L/(m2·h), respectively, using a flux-step method. During a steady running at sub-critical flux of 10 L/(m2·h) without cleaning for 50 days, the average increasing rates of trans-membrane pressure (TMP) for five-bore and single-bore membranes were 0.356 kPa/d and 0.444 kPa/d, respectively, indicating that the five-bore membrane had better fouling resistance. The total resistance values of five-bore membrane and single-bore membrane were 8.68 and 14.1 m−1, respectively. Scanning electron microscope (SEM) and atomic force microscope (AFM) results confirmed the cake layer resistance for five-bore membrane was much lower than single-bore membrane. It was expected that the membrane structure, especially the membrane diameter, influenced the anti-fouling property of five-bore membrane.

Performance promotion of Ag2O photocatalyst by particle size and crystal surface regulation

2020 ◽  
Vol 44 (25) ◽  
pp. 10719-10728
Author(s):  
Jian He ◽  
Hongyan Fu ◽  
Pan Wu ◽  
Zehao Lin ◽  
Ya Zeng ◽  
...  
Keyword(s):  
Particle Size ◽  
Wastewater Treatment ◽  
Photocatalytic Performance ◽  
Crystal Surface ◽  
Crystal Plane ◽  
Dyeing Wastewater ◽  
Printing And Dyeing Wastewater ◽  
Wastewater Treatment Systems

Photocatalytic performance of Ag2O was greatly improved by adjusting the crystal plane structure and size with pyridine, which promoted the application of Ag2O to actual industrial printing and dyeing wastewater treatment systems.

Removal of methylene blue from aqueous solution using high performance calcium alginate/activated carbon membrane

2019 ◽  
Vol 32 (3) ◽  
pp. 307-321 ◽  
Author(s):  
Xiaoping Zhang ◽  
Yanhui Li ◽  
Meixiu Li ◽  
Heng Zheng ◽  
Qiuju Du ◽  
...  
Keyword(s):  
Methylene Blue ◽  
Wastewater Treatment ◽  
Activated Carbon ◽  
Composite Membrane ◽  
Calcium Alginate ◽  
Dyeing Wastewater ◽  
Carbon Membrane ◽  
Content Type ◽  
Printing And Dyeing Wastewater ◽  
New Ideas

Purpose The purpose of this paper is to purify the wastewater in the garment industry. Design/methodology/approach The preparation of the calcium alginate (CA)/activated carbon (AC) composite membrane was achieved by vacuum freeze-drying and the cross-linking reaction between sodium alginate and CaCl2. Effective parameters in the methylene blue (MB) adsorption such as temperature, dose, contact time and pH were discussed. The adsorption properties of the composite membrane were investigated by isotherm, kinetics and thermodynamic analysis. The adsorption equilibrium data were described by the adsorption isotherm Langmuir model and the Freundlich model. The pseudo-first-order, pseudo-second-order and intra-particle diffusion equations were selected to evaluate the kinetics. The thermodynamic study described that the adsorption reaction was spontaneous and exothermic. Findings The AC/CA membrane is an efficient and powerful adsorbent to remove MB in printing and dyeing wastewater, and provides a new idea for the selection of adsorption materials for industrial printing and dyeing wastewater. Practical implications The composite membrane research on CA and AC can provide new ideas for the research of these kinds of materials. Social implications The paper contributes to its wider and convenientapplication in wastewater treatment. Originality/value Studies on the combination of CA and AC into adsorption membranes and for the removal of dyes from printing and dyeing wastewater have not been reported. A novel composite material is provided for treatment dyeing wastewater in garment production. The composite membrane research on CA and AC can provide new ideas for the research of these kinds of materials and contribute to its wider and convenient application in wastewater treatment.

Immobilized Microorganism Technology and the Application of Wastewater Treatment

2014 ◽  
Vol 955-959 ◽  
pp. 383-386 ◽  
Author(s):  
Ming Zhong Hu ◽  
Ya Nan Tang ◽  
Xiao Yu Wang
Keyword(s):  
Wastewater Treatment ◽  
Ammonia Nitrogen ◽  
Engineering Practice ◽  
Oily Wastewater ◽  
Dyeing Wastewater ◽  
Treatment Progress ◽  
Printing And Dyeing Wastewater ◽  
Heavy Metal Wastewater ◽  
Immobilization Technology ◽  
Immobilized Microorganism

The paper mainly summarizes the method of immobilized microorganism£¬selection the carrier, and application of immobilization technology and wastewater treatment progress. Ammonia-nitrogen wastewater and refractory organic wastewater, heavy metal wastewater, printing and dyeing wastewater, oily wastewater and several kinds of wastewater treatment of immobilized are introduced respectively. And points out what the problem should be solved that applied the laboratory application to the real engineering practice.

Study on Treatment of Printing and Dyeing Wastewater by A/O Membrane Bioreactor

2013 ◽  
Vol 781-784 ◽  
pp. 2110-2113
Author(s):  
Zhen Ya Zhu ◽  
Zhi Juan Gao ◽  
Ai Guo Li ◽  
Jian Hui Sun
Keyword(s):  
Experimental Analysis ◽  
Membrane Bioreactor ◽  
Membrane Module ◽  
Dyeing Wastewater ◽  
Treatment Efficiency ◽  
Printing And Dyeing Wastewater ◽  
Aerobic Processes

The anaerobic-aerobic processes and membrane module was combined to be an A/O MBR used for treatment of dyeing wastewater. The running parameters, such as the removal of CODcr, DO, MLSS and HRT have been studied. Through experimental analysis, when the MLSS is between 2000 and 6000mg/L, DO is nearby 2.5mg/L, HRT is between 8h and 9h, the treatment efficiency is the highest.

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