The dyeing industry both of business size and household size where the remaining water from the dyeing process is dumped into pipes and flows into natural water sources causing sewage problems. Therefore a column type wastewater treatment system has been developed by using a filtration system along with an adsorption system. The materials used to treat the wastewater from dyeing are gravel sand charcoal from wood and activated carbon from coconut shell. The study was conducted on the synthesis activated carbon from coconut shell using for color and molecules adsorption. The amount of activated carbon from coconut shell was varied at 200 400 600 and 800 g applying with filter media and other adsorption materials taking 1 hour to treat the wastewater from dyeing. The parameter using to measure water quality consisted of color value pH suspended solids conductivity turbidity value COD and TKN to indicate the water quality before and after treatment evaluating the efficiency of the wastewater treatment system. The best ratio that can treat the color is the formula containing 800 g of coconut shell activated carbon. It was able to treat the color equal to 5.94 SU or 99.43 percent compared to the wastewater before treatment.

This research is a study on treatment of Water Dyes from textile dyeing industry by Advance oxidation process with Ozone and hydrogen peroxide (H2O2). In this study Ozone generators with a capacity of 1.0 - 3.0 mg/ hr. were used to study the appropriate factors for treatment with adjusting wastewater conditions (pH 3 pH 7 and pH 11) Ozone exposure distance 120 minute the initial COD concentration is 250 - 1000 mg/l. and adding hydrogen peroxide at 4 8 and 12 ml/l. For the study found that above mentioned factors have an effect on the efficacy of color and COD treatment which the experiment at pH 11 used to Ozone treatment and added 4 ml/l. of H2O2. It makes the highest COD treatment efficiency when compared to pH 3 pH 7 and added more H2O2. it doesn’t affect to the higher of treatment efficiency. In addition it was found that higher initial COD concentration decreased treatment efficiency which the experimental ability for COD treatment has highest value was 46 percent and the COD concentration was 250 ml/l In order that when COD concentration in synthetic color water was increased to 500 ml/l and 1000 ml/l. it was found that the COD efficiency decreased to 31% and 40% respectively. For the treatment of Water Dyes from textile dyeing industry by oxidation process with Ozone together with hydrogen peroxide (H2O2) at pH 7 will has the highest of treatment efficiency. However the consideration of suitability for pH configuration used to treat both color and COD should choose pH 11 because it can treat both color and COD that makes the waste water quality meet the standards required by law. In addition if we consider the effectiveness of turbidity and BOD found that the decrease of dirtiness tends to be in the same direction with COD both 2 parameters.

This research is to study the efficiency of treating wastewater from dyeing fabric by the ozonation process. By using rutile TiO2 coated plastic media to catalyze. Which uses O3 generators with a capacity of 2.62 - 3.10 g/hr. By studying the factors that affect the treatment efficiency of COD and color such as the pH of the water used in the treatment at pH 3 pH 7 and pH 11 the initial COD concentration of 100% 50% and 25% which have values in the range of 100 -320 mg/L. O3 exposure time 120 min. From the study it is found that the efficiency of reducing the impurities in wastewater by the ozonation process in the pH 11 state the COD concentration at 50% can reduce the COD. And the maximum color is at 33.3% and 90% from the 550 ADMI color intensity with a COD of 180 mg/L. For the study of the efficiency of reducing the impurities of wastewater by ozonation process together with 2 g. of TiO2/1 L. of wastewater in the condition of pH 11 concentration COD Beginning at 100% with the ability to reduce COD values And the maximum color is at 40% and 80% of the 270 ADMI color intensity with a COD of 190 mg/L. The amount of O3 suitable for treatment has an average value of 0.0374 g/min./10.5 L. of wastewater. The duration of O3 exposure in both processes has a similar approach to the efficiency of COD and color treatment when increasing the duration of O3 exposure.

Nowadays increasing water pollution has put significant pressure on water resources. Natural organic matter and organic micro-pollutants have been found in potentially harmful concentrations in numerous water sources. Phthalate plasticizers are also micro-pollutants of concern; Di- (2-Ethylhexyl) phthalate (DEHP) is one of the most frequently observed plasticizers in the environment as well as one of the most persistent. The maximum permissible levels of these compounds in drinking water and wastewater discharged to the environment are set at low concentrations. In this research water samples were collected from the New Bang Kaen Canal in Bangkok Thailand (13°4906.1N 100°3042.4E) which receives wastewater from human activities and contains impurities in the water. Several common treatment technologies currently used to remove inorganic and organic contaminants from natural water supplies address serious environmental problems. Properly selected microfiltration membrane processes are elements of effective systems for water purification. Polymeric membranes are of primary interest for membrane separation techniques because they are both practical and effective. However pretreatment before using a microfiltration membrane is necessary for suspended solids reduction. This research used two types of polymeric membranes namely cellulose acetate membrane (CA) and polyvinylidene difluoride membrane (PVDF) and covers the most applicable requirements regarding pretreatment of the water intake. The performance of polymeric membranes for water treatment was also investigated. The water quality of the New Bang Kaen Canal was assessed in terms of turbidity SS and COD. This research has the potential to contribute to the monitoring of water quality in the New Bang Kaen Canal. Water quality monitoring is a fundamental tool for water resources management. The performance of polymeric microfiltration membranes was effective for water and wastewater purification in terms of solids organic substances and micro-pollutant i.e. DEHP compounds. Nevertheless the further development of polymeric membranes regarding fouling on the membrane surface and within pores needs to be improved to increase membrane performance and ameliorate the limitations of microfiltration polymeric membranes.

The objective of this research was to study the treatment of Phosphate from wastewater by filter material with shells. Various parameters include pH temperature turbidity DO nitride ammonium and phosphate were investigated and compared before and after filler wastewater. The results show that the quality of wastewater after treatment enhancing with adding filter material with shells. The optimum ratio treatment of phosphate is resulting in maximum values was around 0.05 mg/liter (50% compare with wastewater before treatment) with formula no. 3 that not have time to filler. Moreover the results demonstrated the treatment of Phosphate from wastewater by filter material with shells can be improvement the value of turbidity nitride ammonia and DO for wastewater.