WATER POLLUTION REDUCTION BY USING NEW PREMETALATED DYES IN DYEING WOOL

2012 ◽  
Vol 11 (2) ◽  
pp. 285-290
Author(s):  
Ion Sandu ◽  
Laura Chirila ◽  
Romen Butnaru ◽  
Viorica Vasilache ◽  
Maria Marcela Tarlea
Keyword(s):  
Water Pollution ◽  
Pollution Reduction

scholarly journals Analysis of efficiency of pollution reduction measures in rural basin using MIKE Basin model. Case study: Olšava River Basin

2014 ◽  
Vol 62 (1) ◽  
pp. 43-54 ◽  
Author(s):  
Jana Kaiglová ◽  
Jakub Langhammer
Keyword(s):  
Water Pollution ◽  
River Basin ◽  
Municipal Wastewater ◽  
Arable Land ◽  
Pollution Reduction ◽  
Municipal Wastewater Treatment ◽  
Model Case ◽  
Eu Legislation ◽  
Variable Topography

Abstract This paper presents the results of testing the applicability of the MIKE Basin model for simulating the efficiency of scenarios for reducing water pollution. The model has been tested on the Olšava River Basin (520 km2) which is a typical rural region with a heterogeneous mix of pollution sources with variable topography and land use. The study proved that the model can be calibrated successfully using even the limited amount of data typically available in rural basins. The scenarios of pollution reduction were based on implementation and intensification of municipal wastewater treatment and conversion of arable land on fields under the risk of soil erosion to permanent grassland. The application of simulation results of these scenarios with proposed measures proved decreasing concentrations in downstream monitoring stations. Due to the practical applicability of proposed measures, these could lead to fulfilment of the water pollution limits required by the Czech and EU legislation. However, there are factors of uncertainty that are discussed that may delay or limit the effect of adopted measures in small rural basins.

A Selection Optimization Model of Water Pollution Emission Reduction Measures in Refining and Chemical Enterprises

2014 ◽  
Vol 472 ◽  
pp. 840-844
Author(s):  
Xing Chun Li ◽  
Jing Ya Wen ◽  
Jiang Long ◽  
Xian Yuan Du ◽  
Yu Li
Keyword(s):  
Water Pollution ◽  
Optimization Model ◽  
Emission Reduction ◽  
Pollution Reduction ◽  
Sulfur Recovery ◽  
Validity And Reliability ◽  
Maximum Emission ◽  
Pollution Emission ◽  
Recovery Unit

On account of severe water pollution condition, this paper combines refinery and chemical enterprises pollution reduction and linear programming method, builds a selection optimization model of water pollution emission reduction measures in refining and chemical enterprises, and puts the above model into practice to validate its validity and reliability. According to the case study, the maximum emission reductions of COD and NH3-N for refining and chemical enterprises was 6481.50 and 549.51tons, which has improved 29.63% and 9.90% compared with the target reductions, respectively. The optimal emission reduction scheme is choosing MycelxTMtechnology, and COD has installed on the Delay catalytic unit, while NH3-N has installed on the Sulfur recovery unit. This model could provide not only the maximum emission reduction and optimal scheme, but also the decision support of emission reduction for refinery and chemical enterprises during "the 12thFive-Year Plan".

The industrial water footprint of zippers

2014 ◽  
Vol 70 (6) ◽  
pp. 1025-1031 ◽  
Author(s):  
Yin Zhang ◽  
Xiong Ying Wu ◽  
Lai Li Wang ◽  
Xue Mei Ding
Keyword(s):  
Water Pollution ◽  
Pilot Study ◽  
Industrial Production ◽  
Water Footprint ◽  
Pollution Reduction ◽  
Industrial Water ◽  
Sewing Thread ◽  
Production Processes ◽  
Apparel Production ◽  
Product Output

Industrial production of apparel consumes large quantity of freshwater and discharges effluents that intensify the problem of freshwater shortage and water pollution. The industrial water footprint (IWF) of a piece of apparel includes the water footprint (WF) of the fabric, apparel accessories (e.g. zipper, fastener, sewing thread) and industrial production processes. The objective of this paper is to carry out a pilot study on IWF accounting for three kinds of typical zipper (i.e. metal zipper, polyethylene terephthalate (PET) zipper and polyoxymethylene copolymer (Co-POM) zipper) that are commonly used for apparel production. The results reveal that product output exerts a remarkable influence on zipper's average IWF. Metal zipper has the largest IWF and followed by Co-POM zipper and PET zipper. Painting, dyeing and primary processing are the top three water-consuming processes and contribute about 90% of the zipper's IWF. Painting consumes the largest amount of freshwater among all processes and occupies more than 50% of the zipper's IWF. In addition, the grey water footprint (WFgrey) provides the greatest contribution, more than 80%, to the zipper's IWF. Based on these results, this paper also provides several strategies aimed at water economization and pollution reduction during industrial production of zipper.

scholarly journals Decentralization and Transboundary Pollution: Evidence from the Change of Water Pollution Levels in China

2017 ◽  
Author(s):  
Yongliang Yang ◽  
Manhong Shen
Keyword(s):  
Water Pollution ◽  
Water Quality ◽  
Pollution Control ◽  
Water Environment ◽  
Pollution Reduction ◽  
Quality Data ◽  
Monitoring Site ◽  
Water Quality Data ◽  
Pollution Levels ◽  
Difference Test

Pollution spillover is an important issue to improve the water environment of transboundary rivers, which has been aggravated by the decentralization of China's pollution control and promotion system.This paper analyzes the evolution of the pollution reduction mandates and the possible change of water environment in China which are tested with the water quality data of state key monitoring sections in 2004-2014 .In terms of research methods, this paper mainly uses Propensity Score Matching reference with group difference test and OLS. Empirical findings support the association between decentralization and pollution levels. The pollution levels of the monitoring points located at the boundary are significantly higher than that of interior counties. The pollution of tributary is more serious than trunk stream，which quickly reversed after the system changed. Water pollution levels rapidly changes when we compare the monitoring site in front of jurisdictional boundaries with that after the jurisdictional boundaries. We draw the following conclusions that local goverments may manipulate pollution within their jurisdictions and total pollutant control system will exacerbate border pollution, while water quality inspection can reduce marginal pollution.

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