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Abstrak :
ABSTRAK
As of present, water pollution that is caused by textile dyeing factories is one of the primary concerns in Thailand. wastewater is contaminated with dyes, which results in an unpleasant watercolor. this research emphasized on the study of the adsorption of Direct Red 83 dye through the use of water hyacinths, which are abundant in number and can be easily obtained. prior to the adsorption, water hyacinths were modified with cetyltrimetylammonium bromide (CTAB). The value of pHpzc of the adsorbent was 5.15. The adsorption was most effective at the pH value of 3. After increasing the amount of adsorbent and the temperature for water treatment, the percentage of dye removal would increase. However, if the concentration of dye increases, the percentage of dye removal would decrease. Upon the addition of electrolytes into the Wastewater that contained this particular type of dye, it was found that calcium salts lowered the percentage of dye removal to a greater extent than sodium salts. The process of adsorption was in accordance with Langmuir adsorption model, with qe value equals to 66.2252 milligrams per gram, KL value equals to 1.6064 liters per milligram, and RL value equals to 0.0062. based on Dubinin-Radushkevich equation, the obtained E value represents physical adsorption. According to Redlich-Peterson equation, bR equals to 1.0797, which supported the fact that adsorption conformed to Langmuir model. This adsorption was in accordance with the model of a second-order reaction. When the temperature of the Wastewater increases, K2 value would increase. when the concentration of dye increases, qe value would increase.

Abstrak :
ABSTRAK
Waste water treatment efforts from the batik industry both by the Government through the Environment Agency already exist, as well as implemented by existing batik craftsmen who apply, but this has not been able to contribute to improving optimal water environment conditions, because only a few craftsmen who have implementing wastewater treatment plants within its industry. For example wastewater treatment from home batik industry (home industry) or wastewater treatment or indvidual batik industry, in resindetial areas both in Pekalongan city and Garut city in general have not been processed and discharged to recipient water bodies. Field information obtained from the Environmental Agency of Pekalongan City and Garut city recently made an effort to inventory the number of home batik industry scattered in urban settlement areas and waste handling efforts. Indeed, waste water from this home batik industry make a significant contribution to surface water pollution and shallow groundwater. Very real indicators of the develoment of pollution levels of ground water are among others from the wells of the original population as drinking water source after the development of the batik industry is only used for dyeing only. The water supply is supplied from the PDAM or from a refill installation. Another visual indicator, the level of contamination of surface water / open channel that functional as enviromental drainage has function to drain industrial waste water batik. These conditions contribute to pollution in addition to groundwater as well as to the surrounding air quality.

Abstrak :
This book describes the latest advances, innovations and applications in the field of waste management and environmental geomechanics as presented by leading researchers, engineers and practitioners at the International Conference on Sustainable Waste Management through Design (IC_SWMD), held in Ludhiana (Punjab), India on November 2-3, 2018. Providing a unique overview of new directions, and opportunities for sustainable and resilient design approaches to protect infrastructure and the environment, it discusses diverse topics related to civil engineering and construction aspects of the resource management cycle, from the minimization of waste, through the eco-friendly re-use and processing of waste materials, the management and disposal of residual wastes, to water treatments and technologies. It also encompasses strategies for reducing construction waste through better design, improved recovery, re-use, more efficient resource management and the performance of materials recovered from wastes. The contributions were selected by means of a rigorous peer-review process and highlight many exciting ideas that will spur novel research directions and foster multidisciplinary collaboration among different waste management specialists.