In-plant control applications and their effect on treatability of a textile mill wastewater

2002 ◽  
Vol 45 (12) ◽  
pp. 287-295 ◽  
Author(s):  
H. Dulkadiroglu ◽  
G. Eremektar ◽  
S. Dogruel ◽  
H. Uner ◽  
F. Germirli-Babuna ◽  
...  
Keyword(s):  
Water Consumption ◽  
Water Demand ◽  
Textile Industry ◽  
Industrial Wastewater ◽  
High Water ◽  
Wastewater Management ◽  
Textile Mill ◽  
Control Applications ◽  
Control Survey ◽  
Plant Control

Water minimization and exploration of the potential for wastewater recovery and reuse are priority issues of industrial wastewater management. They are extremely significant for the textile industry commonly characterized with a high water demand. The study presents a detailed in-plant control survey for a wool finishing plant. A comprehensive process profile and wastewater characterization indicate that process water consumption can be reduced by 34%, and 23% of the wastewater volume can be recovered for reuse. Treatability of reusable wastewater fraction and the effect of in-plant control applications on effluent treatability were also investigated.

scholarly journals Barriers and opportunities for behavior change in managing high water demand in water scarce Indigenous communities: an Australian perspective

2019 ◽  
Vol 9 (4) ◽  
pp. 765-773
Author(s):  
Safaa Aldirawi ◽  
Regina Souter ◽  
Cara D. Beal
Keyword(s):  
Behavior Change ◽  
Water Use ◽  
Water Consumption ◽  
Water Conservation ◽  
Water Demand ◽  
Indigenous Communities ◽  
High Water ◽  
Indigenous Community ◽  
Water Users ◽  
Household Water

Abstract Managing water demand by reducing water consumption and improving water use efficiency has become essential for ensuring water security. This research aimed to identify the primary determinants of household water consumption in an Australian Indigenous community to develop evidence-based water demand management policies and strategies that might be implemented by the water service provider. A behavior change framework was applied to investigate the opportunity, ability, and motivational determinants affecting household water consumption and conservation in an Australian Indigenous community. The lack of water conservation knowledge and skills of high water users could be barriers to saving water. Low water users have positive attitudes towards water conservation and a higher level of awareness about their own water use. While there is a lack of a belief that water shortages will occur, low water users do have concerns of vulnerability to droughts, and that could be a driver for their sense of obligation to engage in water conservation practices. The research recommended communication messages and tools to address identified barriers to enabling positive changes to water use behaviors, which have wider applications in remote Australian Indigenous communities.

scholarly journals Alternative solutions of industrial wastewater management in the textile industry

2019 ◽  
Vol 4 (3) ◽  
pp. 90-95
Author(s):  
Mona A Abdel-Fatah ◽  
Azza I Hafez ◽  
Ahmad H Gaber ◽  
May Kamal
Keyword(s):  
Textile Industry ◽  
Industrial Wastewater ◽  
Pollution Prevention ◽  
International Standards ◽  
Wastewater Management ◽  
Specific Rate ◽  
Analysis Tool ◽  
Treatment Methods ◽  
Methods And Techniques ◽  
Alternative Solutions

The investigation of cost-effective water treatment methods and techniques is considered an extremely important and vital objective. The aim of this study is to reach the optimum solution for the treatment of the effluent industrial wastewater from the textile industry sector in Egypt. In this work, the treatment methods and techniques under consideration were selected as being feasible and appropriate to achieve the required goal effectively. Misr Beida Dyers Company (MBDC), located at Kafer El Dawar Alexandria Governorate, has been chosen for the study. The company discharges 10–12 millions of cubic meters of wastewater annually into Abu Qir Bay, thus it is considered one of the major sources of industrial pollution in this zone. In this work, the selected procedure is to compare between two different designs for the wastewater treatment plants, whereby three alternative solutions (interventions) were proposed for each design namely: end-pipe-treatment on raw wastewater, with pollution prevention (PP) and with cleaner production (CP). Evidently, the selection of the best design approach is based on economics. To achieve this objective, a suitable cost-benefit analysis tool (CBA) has been adopted. Finally, looking at benchmarking results, it was observed that the specific rate of consumed items (water, electricity, fuel, chemicals, etc.) is rather high when compared with the recognized international standards (IS) in this respect. The unexpected rise in the abovementioned items coupled with a notable decline in the production of the plant under consideration in the period from 1994 to 2004 poses a big question mark and needs a prompt answer from the responsible authorities.

scholarly journals Impact of Crop Replacement Concept as a Solution for Water Scarcity Problem

2020 ◽  
Vol 8 (5) ◽  
pp. 1855-1861
Keyword(s):  
Water Consumption ◽  
Water Scarcity ◽  
Water Demand ◽  
Virtual Water ◽  
High Water ◽  
Local Market ◽  
Relative Area ◽  
Replacement Process ◽  
The World ◽  
Market Needs

Water scarcity is one of the important global risks causing a great dispute around the world. How to obtain a suitable water quantity or quality that affects the economy of the world. Egypt is a country suffering from water scarcity due to the high rates of population growth with a fixed share of the Nile water which is considered as the main Egyptian water resource. The present work aims to apply the concept of virtual water on the agricultural products to suggest the replacement of crops having relatively high water consumption and low prices with other crops having low water consumption and high prices. The impacts of the replacement process was achieved through the classification of selected 22 crops and grouped into four groups based on their Specific Water Demand (SWD) and their world prices, then the crops contained in the group of the lowest water consumption and the highest price will be proposed to be exported and the crops in the group of the highest water consumption with the lowest price will be proposed to be imported. The effect of crop replacement within the 22 crops was measured by calculating the Relative Specific Water Demand (RSWD), the Relative Area (RA) saved and consequently the relative cash return. A Matlab program was constructed and calibrated through comparing its results with the CropWat model of FAO database to calculate the SWD of the selected crops cultivated in Egypt. Regarding the results, “Barley” was the best crop proposed to be imported and replaced by Tomato where the RSWD reaches 15.70 m 3 /ton, the relative area saved reaches 10.138 ha/ton and the relative cash return reaches 5691 (1000$/ton). On the other hand, the process of replacement gives a complete vision to the decision makers to decide the priority of the imported crops according to the local market needs taking into consideration the economic situation in the country.

scholarly journals Life Cycle Blue and Grey Water in the Supply Chain of China’s Apparel Manufacturing

Processes ◽  
2021 ◽  
Vol 9 (7) ◽  
pp. 1212
Author(s):  
Ao Liu ◽  
Aixi Han ◽  
Li Chai
Keyword(s):  
Water Pollution ◽  
Supply Chain ◽  
Life Cycle ◽  
Water Consumption ◽  
Agricultural Sector ◽  
Oxygen Demand ◽  
High Water ◽  
Grey Water ◽  
Apparel Manufacturing ◽  
Economic Output

Apparel manufacturing involves high water consumption and heavy water pollution in its supply chain, e.g., planting cotton, producing chemical fibers, and dyeing. This study employs a multi-regional input–output (MRIO) model to (1) assess the life cycle of blue and grey water (chemical oxygen demand (COD) specific) of China’s apparel manufacturing; (2) reveal the hidden linkage among sectors and regions in the whole supply chain; and (3) identify the key regions and upstream sectors with the most water consumption and heaviest water pollution. We found that the agricultural sector (i.e., planting fiber crops) is responsible for primary water consumption and water pollution. In addition, different provinces assume different production roles. Guangdong is a major output province in apparel manufacturing. However, its economic output is contributed to by other regions, such as blue water from Xinjiang and Jiangsu and grey water from Hebei and Shandong. Our research reveals the significance of taking an inter-regional perspective on water resource issues throughout the supply chain in apparel manufacturing. The sustainable development of China’s apparel manufacturing relies on improving water-use efficiency and reasonable industrial layout. The results are of significance and informative for policymakers to build a water-sustainable apparel industry.

scholarly journals Investigation of the Behavior and Mechanism of Action of Ether-Based Polycarboxylate Superplasticizers Absorption on Large Bibulous Stone Powder

Materials ◽  
2021 ◽  
Vol 14 (11) ◽  
pp. 2736
Author(s):  
Zuiliang Deng ◽  
Guimin Lu ◽  
Lefeng Fu ◽  
Weishan Wang ◽  
Baicun Zheng
Keyword(s):  
Infrared Spectroscopy ◽  
Thermogravimetric Analysis ◽  
Zeta Potential ◽  
Mechanism Of Action ◽  
Water Consumption ◽  
Pore Volume ◽  
High Water ◽  
Hydrodynamic Diameter ◽  
Coarse Aggregates ◽  
Polycarboxylate Superplasticizer

The aim of this paper is to study the adsorption behavior of polycarboxylate superplasticizers (PCE) on coarse aggregates with a property of high water consumption (above 2%). The coarse aggregates were ground into a powder to create large bibulous stone powder, and it was observed that significant amounts of the ether-based PCE were absorbed onto large bibulous stone powder. The adsorption rate immediately reached a maximum after 5 min and then gradually decreased until an equilibrium absorption was established after 30 min. Zeta potential, infrared spectroscopy, and thermogravimetric analysis (TGA) measurements confirmed that the polycarboxylate superplasticizer adsorbed on the surface of the stone powder. Hydrodynamic diameter measurements showed that the polycarboxylate superplasticizer molecules were smaller than pore size, and the surface area and pore volume were reduced by the polymer incorporation in the pores.

Industrial Wastewater Treatment and Reuse in a Developing Country Context: Evidence at the Firm Level from Ecuador

2018 ◽  
Vol 04 (02) ◽  
pp. 1750005 ◽  
Author(s):  
Oscar Zapata
Keyword(s):  
Wastewater Treatment ◽  
Production Process ◽  
Developing Country ◽  
Industrial Wastewater ◽  
Public Perception ◽  
Wastewater Reuse ◽  
Industrial Sector ◽  
Wastewater Management ◽  
Firm Level ◽  
Local Conditions

Wastewater reuse constitutes an alternative supply source of water. It not only increases the amount of water available but also reduces water pollution. The benefits and costs of this practice, and the public perception of reuse are the focus of several studies. However, the evidence on industrial wastewater reuse at the firm level remains scant. This paper is aimed at filling this gap by presenting evidence on the determinants of both wastewater treatment and reuse practices in a developing country context. I use firm level data from the Survey on Firms’ Environmental Practices of Ecuador. My results show that wastewater management in general, and reuse in particular, are still limited practices in the industrial sector of the country. My results suggest that firm’s decisions to treat and reuse depends on long-term firm’s characteristics, such as annual investment, the nature of the production process and local conditions, as well as the scale of production and water consumption. Volumes of wastewater treated and reused depend positively on the amount of water used in the production process and the firm’s annual level of investment or expenditure. The cost of the practice only affects the volume treated. The results suggest that targeting water-intensive industry sectors and the costs of wastewater treatment can play an important role for a more sustainable use of water in the industrial sector of Ecuador.

Degradation of organic pollutant in restaurant wastewater using the homogenous catalysis with Mn(II) and EDTA

2021 ◽  
Vol 10 (4) ◽  
pp. 46-51
Author(s):  
Tue Nguyen-Ngoc ◽  
Trung Nguyen-Duc
Keyword(s):  
Textile Industry ◽  
Industrial Wastewater ◽  
Plant Protection ◽  
Organic Pollutant ◽  
Paper Industry ◽  
Organic Pollution ◽  
Activation Process ◽  
Printing Industry ◽  
Transitional Metal ◽  
Restaurant Wastewater

It can be seen that the objects of wastewater that need to be treated are quite diverse in types and complex in terms of reaction mechanisms. The methods mainly focus on the treatment of toxic organic compounds, especially phenols or plant protection agents in industrial wastewater, paper industry, food production, textile industry, printing industry... The activation of H2O2 and O2 by complexes of transitional metal ions and suitable ligands creates oxidizing agents and ecologically healthy products. The intermediate substances arising in the activation process such as free radicals OH., O2., HO2., ... can oxidize many compounds, especially the ability to attack the aroma of organic pollutants. In this paper, the results of research on treating organic pollution in restaurant wastewater with H2O2 are presented as a catalyst of complexes between Mn2+ ions and EDTA. The conditions including pH, EDTA/Mn2+, the concentration of H2O2, Mn2+ were investigated to obtain the optimum conditions for improving COD treatment efficiency. This work proposes a method based on formation of the Mn(II)-EDTA complex,  b=1; with the optimal conditions of other factors as following [H2O2]0 = 0,75.10-3 mol/L; [Mn(EDTA)]2- = 33,33 mol/L, pH=10.5; t = 15 minutes. The initial COD of 1025 mg/L decreased to 135 mg/L after the proposed procedure.  The results provide solutions of homogeneous complex catalysts for domestic/restaurant and industrial wastewater treatment at room temperature and atmosphere.

An Overview of Industrial Wastewater Management Using Integrated Algal Technologies

2020 ◽  
pp. 141-172
Author(s):  
K. Dhandayuthapani ◽  
V. Sarumathi ◽  
Ravindra Prasad ◽  
Imran Pancha ◽  
Sanjay Kumar Gupta ◽  
...  
Keyword(s):  
Industrial Wastewater ◽  
Wastewater Management
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