A Comparison Efficiency of Cafeteria Wastewater Treatment with EM Produced by Banana Watermelon and Guava Case Study : Rajamangala University of Technology Phra Nakhon Cafeteria ( North Bangkok Campus) has the objective to compare the efficiency of wastewater treatment by using the EM microbe for the Cafeteria that has no waste water treatment system. The treatment solution was leavening agent EM : Molasses : Fruits : Water in the ratio 1 : 1 : 2 : 20 liters (as an experimental group) and leavening agent EM : Molasses : Water in the ratio 1 : 2 : 20 liters (as a control group). respectively and mixed each solution set in wastewater treatment ratio of 1 : 1000 (EM 1 part : wastewater 1000 part) . In the experiment use the 10 liters of wastewater sampling and added the EM microbe solution every 3 days 10 ml per a day and daily for 3 weeks. Collecting the wastewater every 7 day. Parameters in this experiment are BOD COD SS Oil and Grease pH Color and Odor. The comparison showed that the EM made from watermelon can reduce the BOD and SS of wastewater is the best. And adapt the most of pH to pH 7. The EM make from guava can reduce the COD Oil and Grease is the best. The results were in the standards of sewage release of the building type B. In the 1st 2nd and 3rd week the BOD COD SS Oil and Grease and pH from the waste water treatment with EM microbe that make from Banana Watermelon and Guava ( as a Experimental group) and molasses (as a Control group) only are statistically different at the .05 level. By the way the Color and Odor of the waste water analysis before and after treatment with EM microbe 4 species still have yellow color and bad smell.

The development of ethanol fermentation of jackfruit wastes by a medium size distillation machine aimed to study and develop an ethanol fermentation method that gives optimal production of ethanol. In this research the ethanol production capability of 4 different groups of microorganisms including natural microbes microorganisms in stock rice fermented Saccharomyces cerevisiae EDV 492 and S. cerevisiae EC 118 is compared. The following procedure was implemented to allow the prescribed comparison: 1) microbes culturing (350 ml) for a total period of 20 days. Based on the study results all four groups of microorganism were capable of growing in the given culture medium which is sugar substrate. 2) Small sized fermentation (1 liter) for a total period of 4 days. From this second procedure it can be discovered that microorganism in stock rice fermented and S. cerevisiae EC 118 were highly efficient in producing sugar and ethanol 14% and 13% (v/v) respectively. 3) Develop small sized fermentation to a medium sized fermentation (20 liters) by fermenting natural microbes for a total period of 4 weeks until sugar is obtained. According to the study glucose must be added to increase the sugar level up to 25% Brix in order to provide sufficient substrate to allow ethanol production of the studied microorganisms. During ethanol fermentation process it can be found that microorganisms in stock rice fermented and S. cerevisiae EC 118 produced the highest amount of ethanol at 16% (v/v) within the period of 10 days and 8 days respectively. Hence according to this development of ethanol fermentation S. cerevisiae EC 118 is the most efficient microorganism in terms of ethanol fermentation of jackfruit wastes. In addition after the distillation of 99% ethanol it can also be found that both microorganisms in stock rice fermented and S. cerevisiae EC 118 produced 720 ml and 740 ml of ethanol respectively.

The experiment was in a type of 4 experimental wells with the size of width x length x height was equal to 0.5x1x 0.5 meters including the experimental well which had plants of Colocasiaesculenta (L.)Schott PandanusamaryllifoliusRoxb and Canna indica Linn and the rest was the control well without any plants. The time period of Alternating 5 days flooding and 2 days drying Soil. The parameter studied included BOD value suspended solids Total KjeldahlNitrogen Total Phosphorus pH and Oil and Grease. The research result found that the experimental well which had Colocasiaesculenta (L.)Schott PandanusamaryllifoliusRoxb and Canna indica Linn had the effectiveness in wastewater treatment higher than the control well without any plants. After treatment with the control well without any plants the experimental which had plants of Colocasiaesculenta (L.)Schott PandanusamaryllifoliusRoxb and Canna indicaLinn with the romoval percentage of BOD value at 22.66 69.93 63.48 and 76.37 respectively.Suspended Solids at 22.66 69.93 63.48 and 76.37 respectively.TotalKjeldahl Nitrogen at 26.41 68.67 64.21 and 72.99 respectively.Total Phosphorus at 52.26 81.6975.73and79.88respectively.pHat6.42 6.556.64and 6.88 respectively.Oil and Grease at 62.08 78.75 76.47 and 80.39respectively.

This research aims to study the removal of color and chemical oxygen demand (COD) from the corrugated industry with the ozonnation. The use of ozone with capacity in the range of 24.5-59.0 mg per hr. By studying the factors and conditions that are suitable for the treatment of COD in wastewater which consists of the following factors.pH 4 7 and 10 ozone exposure period of 120 minutes and initial COD concentration of 200-720 mg per liter. Have conducted experiments using real wastewater from the plant mentioned above affect the performance of the reactor COD with the ozonnation. At pH 4 to provide maximum efficiency in the treatment of COD compared to pH 7 and pH 10. In addition the concentration of the starting COD higher performance of the reactor is reduced. The results suggest that the treated of COD up to 81.6 percent. COD in wastewater treatment is started at 200 mg per liter. When the concentration of COD in wastewater from the 450 mg and 720 mg per liter. Found that the performance of the reactor the COD decreased to 71.2 and 64.4 percent respectively. For effective treatment of wastewater with turbidity and color ozone process Nation to be aligned with the performance of the reactor COD. The performance of the reactor is decreased when the concentration of the starting COD higher

The purposes of the experimental project were to modify (FBSF) to compare plastic media form Small Pall Ring Bio-media Filter are commercially available. The model of FBSF consists of Equalization tank (EQ) Aeration tank with . The corresponding with Hydraulic Retention Time (HRT) 48 hrs. The factors used in the study are the essential parameter such as BOD COD SS TDS and changes in the Physical Characteristics of wastewater. polypropylene as a supporting media for Fixed Bed Submerged Filter polypropylene media 2 tanks Aeration tank with plastic media 2 tanks and Effluent tank The result experimental indicated that efficiencies of FBSF with 92.78% 75.90% 96.75% and 20.76%0 respectively gave the higher effluent values that the plastic media the efficiencies 84.20% 61.66% 94.12% and 14.80% 0. The effluent BODwas less than 20 mg/l. The was on clear less sediment no foul odor. The . polypropylene media in term of BOD COD SS and TDS removal of FBSF with of BOD COD SS and TDS removal of respectivelywastewater Fixed Bed Submerged Filter was effectively for the community household wastewater5 Rajamangala University of Teehnology Phra Nakhon