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.

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.

Mining wastewater management and its effects on groundwater and ecosystems

2014 ◽  
Vol 70 (9) ◽  
pp. 1481-1487 ◽  
Author(s):  
A. Celebi ◽  
S. Özdemir
Keyword(s):  
Risk Assessment ◽  
Best Management Practices ◽  
Large Scale ◽  
Management Practices ◽  
Developed Countries ◽  
International Standards ◽  
Wastewater Management ◽  
Mining Areas ◽  
Mining Wastewater ◽  
The Developed Countries

Large-scale mining activities have a huge impact on the environment. Determination of the size of the effect and monitoring it is vital. In this study, risk assessment studies in mining areas and the effect of mining on groundwater and ecosystems were investigated. Best management practices and risk assessment steps were determined, especially in areas with huge amounts of mining wastewater. The pollution of groundwater and its reaching humans is a risk of major importance. Our study showed, using many cases with different parameters and countries, that the management of mining wastewater is vital. Environmental impact assessments and monitoring studies must be carried out before operation and at the closure of the mine. Policies must be in place and ready to apply. Factors of climate, geology, ecology and human health must be considered over a long period. Currently, only the developed countries are applying policies and paying attention to the risk. International assessments and health risk assessments should be carried out according to international standards.

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

Steering Gear Requirements: Changes on the International and Domestic Scene

1981 ◽  
Vol 18 (04) ◽  
pp. 382-389
Author(s):  
John C. Maxham
Keyword(s):  
Marine Environment ◽  
Pollution Prevention ◽  
International Standards ◽  
Considerable Effort

Steering gear is vital to the safety of a ship, its personnel, and the marine environment. Because of recent major casualties involving steering gear, considerable effort has been directed toward improving national and international standards for steering gear, particularly for tankers. Much of this effort has been conducted by the Intergovernmental Maritime Consultative Organization. This paper discusses basic U.S. CoastGuard and international requirements for steering gear and outlines changes resulting from such agreements as Resolution A.325(IX), the Tanker Safety and Pollution Prevention Conference, and the most recent amendments to SOLAS 74, which are ready for adoption during the 12th IMCO Assembly in November1981. U.S. and international requirements are compared and a probable timetable for implementing new requirements is presented.

Treatment methods and techniques.

2006 ◽  
pp. 51-77
Author(s):  
Julian Meltzoff ◽  
Richard L. Blumenthal
Keyword(s):  
Treatment Methods ◽  
Methods And Techniques
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