Textile wastewater in Tlemcen (Western Algeria): Impact, treatment by combined process

2019 ◽  
Author(s):  
Chem Int
Keyword(s):  
Water Resources ◽  
Water Reuse ◽  
Freundlich Isotherm ◽  
Textile Wastewater ◽  
Water Shortage ◽  
Isotherm Models ◽  
Combined Process ◽  
Climate Conditions ◽  
Treated Effluent ◽  
Textile Wastewater Treatment

Algerian water resources are scarce, and unequally distributed. The region is facing severe water shortage problems due to climate conditions, uneven precipitations, and the long periods of drought. Moreover, the demand for water from the urban population, industry, and especially agriculture is rapidly increasing. Water management represents an economic and ecological challenge to cope with this demand, conserve the water resources and reduce the environmental pollution. The present paper reviews the textile wastewater treatment and feasibility of reuse. The treatment was performed using a combined process; adsorption on bentonite (B) followed by electroflotation (EF). The effects of B concentration, pH, contact time and current density, were investigated under optimal conditions for maximal dye elimination. Water reuse activity, the potentials, risks and issued associated with reclaimed water reuse are also reviewed. The results were well fitted by both Langmuir and Freundlich isotherm models and show that the effluent treated by this combined method contained essentially no turbidity, color or COD 99, 01%, 99, 49% and 99, 8% are the removal rates obtained, respectively. The treated effluent quality satisfied the requirement of water discharges standards and integration of other factors is needed to reuse this water.

Integration of Fenton's reaction based processes and cation exchange processes in textile wastewater treatment as a strategy for water reuse

2020 ◽  
Vol 272 ◽  
pp. 111082
Author(s):  
Laís G.M. Silva ◽  
Francisca C. Moreira ◽  
Maria Alice P. Cechinel ◽  
Luciana P. Mazur ◽  
Antônio A. Ulson de Souza ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Cation Exchange ◽  
Water Reuse ◽  
Textile Wastewater ◽  
Fenton’S Reaction ◽  
Exchange Processes ◽  
Textile Wastewater Treatment

Textile Wastewater Treatment Using Combined Process of Biological Wriggle Bed and Ozone Biological Aerated Filter

2012 ◽  
Vol 441 ◽  
pp. 589-592
Author(s):  
Zhi Min Fu ◽  
Yu Gao Zhang ◽  
Xiao Jun Wang
Keyword(s):  
Wastewater Treatment ◽  
Removal Efficiency ◽  
Textile Wastewater ◽  
Cod Removal ◽  
Biological Aerated Filter ◽  
Combined Process ◽  
Cod Removal Efficiency ◽  
Aerated Filter ◽  
Textile Wastewater Treatment

A combined process of biological wriggle bed and ozone biological aerated filter was utilized to treat textile wastewater. Results showed that COD removal efficiency was almost 90.4%. The average effluent COD was 85.87 mg/L. The effluent colority was 64-32 times. This study indicated that the combined process is potentially useful for treating textile wastewater.

scholarly journals Modeling in Water Resources Management in East Nile Delta: Review

2020 ◽  
Vol 17 (2) ◽  
pp. 41-46
Author(s):  
Heba F. Abdelwahab ◽  
Elsayed M. Ramadan ◽  
Abdelazim M. Negm
Keyword(s):  
Water Resources ◽  
Water Supply ◽  
Water Reuse ◽  
Geographical Information Systems ◽  
Nile Delta ◽  
Mathematical Optimization ◽  
Water Shortage ◽  
Optimal Operation ◽  
Geographical Information ◽  
Modelling Studies

AbstractIt is acknowledged that providing a safe water supply for all countries is one of the major challenges of the twenty-first century. Egypt is one of the greatest countries affected in Africa and Middle East. The Nile is facing a major water shortage due to the limited water resources and the the demand is growing as a result high population growth and development in industrial and agricultural sectors. This paper has been motivated by the fact that there is no up-to-date literature review of the optimal operation of Water Resources. The analysis of the reviewed literature is structured along five broad branches: (1) Mathematical Optimization Modelling Studies, (2) Numerical Simulation Modelling Studies, (3) Geographical Information Systems “GIS” based Studies, (4) Ecological Studies, (5) Water Reuse Studies. This review is limited to surface water but groundwater has been inexplicitly included. The paper concludes the best way to identify knowledge to cover the gap between water supply and demands and to guide future researches on water resources planning and management.

Application of a combined process of moving-bed biofilm reactor (MBBR) and chemical coagulation for dyeing wastewater treatment

2006 ◽  
Vol 54 (9) ◽  
pp. 181-189 ◽  
Author(s):  
D.H. Shin ◽  
W.S. Shin ◽  
Y.-H. Kim ◽  
Myung Ho Han ◽  
S.J. Choi
Keyword(s):  
Wastewater Treatment ◽  
Textile Wastewater ◽  
Pilot Scale ◽  
Biofilm Reactor ◽  
Dyeing Wastewater ◽  
Moving Bed Biofilm Reactor ◽  
Combined Process ◽  
Chemical Coagulation ◽  
Moving Bed ◽  
Textile Wastewater Treatment

A combined process consisted of a Moving-Bed Biofilm Reactor (MBBR) and chemical coagulation was investigated for textile wastewater treatment. The pilot scale MBBR system is composed of three MBBRs (anaerobic, aerobic-1 and aerobic-2 in series), each reactor was filled with 20% (v/v) of polyurethane-activated carbon (PU-AC) carrier for biological treatment followed by chemical coagulation with FeCl2.In the MBBR process, 85% of COD and 70% of color (influent COD=807.5 mg/L and color=3,400 PtCo unit) were removed using relatively low MLSS concentration and short hydraulic retention time (HRT=44 hr). The biologically treated dyeing wastewater was subjected to chemical coagulation. After coagulation with FeCl2, 95% of COD and 97% of color were removed overall. The combined process of MBBR and chemical coagulation has promising potential for dyeing wastewater treatment.

Photochemical UVC/H2O2 oxidation system as an effective method for the decolourisation of bio-treated textile wastewaters: towards onsite water reuse

RSC Advances ◽  
2016 ◽  
Vol 6 (93) ◽  
pp. 90631-90645 ◽  
Author(s):  
Márcia M. F. F. Salim ◽  
Aline Novack ◽  
Petrick A. Soares ◽  
Ângela Medeiros ◽  
Miguel A. Granato ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Water Reuse ◽  
Wastewater Treatment Plants ◽  
Textile Wastewater ◽  
Biological Oxidation ◽  
H2o2 Oxidation ◽  
Textile Wastewater Treatment ◽  
Oxidation System ◽  
Textile Wastewaters

A photochemical UVC/H2O2 oxidation system was applied for the decolourisation of two real textile wastewaters collected after biological oxidation from two different textile wastewater treatment plants.

Textile wastewater treatment using low-cost adsorbent aiming the water reuse in dyeing process

2018 ◽  
Vol 6 (2) ◽  
pp. 2705-2712 ◽  
Author(s):  
Tarcísio W. Leal ◽  
Luís A. Lourenço ◽  
Ana S. Scheibe ◽  
Selene M.A. Guelli U. de Souza ◽  
Antônio A. Ulson de Souza
Keyword(s):  
Wastewater Treatment ◽  
Water Reuse ◽  
Low Cost ◽  
Textile Wastewater ◽  
Dyeing Process ◽  
Textile Wastewater Treatment

Research on the Scale of Construction Water Reuse

2011 ◽  
Vol 58-60 ◽  
pp. 738-742
Author(s):  
Xiao Yan Wang ◽  
Shao Yan Fan ◽  
Ying Ying Cheng
Keyword(s):  
Water Resources ◽  
Water Reuse ◽  
Economic Status ◽  
Water Shortage ◽  
Recycled Water ◽  
Large Cities ◽  
Small Water ◽  
Residential Communities ◽  
Optimal Balance ◽  
Resource Shortage

To resolve the water resource shortage, the water reuse technologies are of key importance. But in nowadays, the water reuse is only limited in large cities and industry fields. Many residential communities and constructions have not build water reuse systems. The article briefly describes the features and utilizations of domestic and foreign water, analysis the profits and disservices and scale of large and small recycled water. For the current domestic situation and water resources and promote water reuse status and problems considering the urban size, economic status, urban planning and norm-setting and other factors, it advocate that the development of water should start from small to large, from micro to macro, researched the precedent of the scaled provision about small water in Japan and Beijing and proposed the conclusion that to prompt reasonable division of small recycled water and achieve the optimal balance of large and small recycled water in order to promote better water utilization, and thus weaken the limits of water shortage in the development of urbanization.

scholarly journals Sustainable development of climate change resources: About recycling of water resources in Maple Park, Taichung, Taiwan.

2019 ◽  
Vol 117 ◽  
pp. 00016
Author(s):  
Chang-Hsien Hsu ◽  
Chiu-Yu Hung
Keyword(s):  
Sustainable Development ◽  
Water Resources ◽  
Water Reuse ◽  
Water Shortage ◽  
City Government ◽  
Disaster Prevention ◽  
Modern Times ◽  
Taichung City ◽  
Island Type

Water is an essential substance in the global environment that sustains the functioning of all ecosystems. In fact, the demand for water resources should not be limited to human activity systems. In terms of sustainable development of the environment, the distribution and development of water resources need to expand to the needs of other ecosystems on the planet. Taiwan is surrounded by the sea and is a typical island-type economic country. However, due to the young geology of Taiwan, the terrain is too large and undulating, so that the rainwater quickly flows into the ocean and is difficult to store. Taiwan has an average of 2,500 mm of rainfall per year[1].The rainfall in Taiwan is more than 2.6 times the global average, it is a country with abundant rainfall. At the same time, there is also a crisis of water shortage. Due to the narrowness, the steep mountains, and the heavily rain of typhoon, it quickly flows into the sea. So that even if the rain is more and more in Taiwan, it will not ease the problem of water shortage. Therefore, the application of circular economy and water reuse is more important. This study takes “Flood detention pond in Maple Park” as the object of discussion. Exploring how the Taichung City Government used the ecological park to achieve the role of reservoirs for flood detention and disaster prevention. In addition, how to use water resources efficiently to achieve sustainable development has become a major issue in modern times.

Treatment of Textile Wastewater Using Facultative Contact Reactor-Biological Contact Oxidation and Ozone Biological Aerated Filter

2013 ◽  
Vol 777 ◽  
pp. 318-325 ◽  
Author(s):  
Jia Qi Cui ◽  
Xiao Jun Wang ◽  
Xu Long Lin
Keyword(s):  
Textile Industry ◽  
Textile Wastewater ◽  
Pilot Scale ◽  
Operating Conditions ◽  
Biological Aerated Filter ◽  
Combined Process ◽  
Contact Oxidation ◽  
Aerated Filter ◽  
Textile Wastewater Treatment ◽  
Biological Contact Oxidation

The performance of a pilot scale combined process of facultative contact reactor-biological contact oxidation and ozone biological aerated filter (FCR-BCO-O3-BAF) treating real textile wastewater was investigated in this study. During the operating period, the average influent and effluent COD concentrations were 737.0mg/L and 15.6mg/L, the influent and effluent color were 750 times and 10 times, with the total HRT being 43.3h. The average COD and color removal efficiency were 97.9% and 98.7%, respectively. And the effluent COD and color satisfied the discharge standards (grade-1) of water pollutants for dyeing and finishing of textile industry (China). In the operating conditions, HRT of O3-BAF was decreased, leading to an increase of the effluent COD concentration. In addition, under the facultative circumstance by micro aeration in the FCR, where the dissolved oxygen (DO) was maintained in the range of 0.1-0.3mg/L, the growth of sulfate reducing bacteria (SRB) was inhibited. This study is a significant attempt to apply the combined process of FCR-BCO-O3-BAF to textile wastewater treatment.

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