14 samples of TSP and PMwere collected within the area of Amphoe Muang Pathumthani from 7 stations at Tambon Bang Prok Bang Duea Bang Khu Wat Bang Kradee Lak Hok Bang Changand and Kra Sang during February to March 2013 in order to evaluate the concentration of dust and lead concentration level by using ICP-OES. The result of this study shows the TSP ranging 0.03 - 0.32 mg/mmg/mμg/maverage of 0.04 ± 0.06 μg/mμg/m0.05 ± 0.07 μg/m10 3 and the average of 0.12 ± 0.10 3 . The concentration of PM10 is in the range of 0.06 – 0.21 mg/m3 average of 0.13 ± 0.06 mg/m3. Of the determination of lead in TSP concentration of lead found in the range of 0.01 – 0.18 3 3 while lead in PM10 found in the range of 0.01 – 0.21 3 average of 3. Assessment of the public health risk is found contamination of lead in the atmosphere of Amphoe Muang Pathumthani levels ranged from less dangerous except area Bang Prok is worth the risk is moderate danger.

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

Abstract The objective is to analyze Klong Prem Prachakorn water quality and its water management. A total of 10 parameters include pH water temperature turbidity dissolved oxygen (DO) biological oxygen demand (BOD) chemical oxygen demand (COD) suspended solid (SS) total dissolve solid (TDS) and coliform bacteria were measured. Water samples were taken from 3 sampling points along the length of the canal between Bang Khen train station intersection and Wat Samian Nari intersection with a total distance of 1.3 kilometers. Samplings were done weekly for 5 weeks started from 12th December 2013 to 15th January 2014. The results from weekly monitoring of Klong Prem Prachakorn’s water quality show that the values of each parameters being monitored are within the range of the surface water quality standards. Howeverthe reporting values may show weekly fluctuation which may be resulting from relating environmental factors such as changing temperature the canal’s water volume and level (may results from the operation of the floodgate by the Department of Drainage and Sewerage). Nevertheless the values show that the canal water is clean for surface water according to type 4 water quality and can be used inindustrial sector. This study on Klong Prem Prachakorn’s environmental condition has provided a piece of knowledge that was appliedfor environmental problems’ corrective concepts and guidelines. Furthermore knowledge and information gathered in this study together with the use of a Geographical Information System (GIS) can be applied for ecological conservation studies of the areas. This study contributes to an existing knowledge and understanding of Klong Prem Prachakorn’s water quality problems and can be used to support water quality improvement campaign

The study evaluated the greenhouse gas emission reduction of waste management with software of 3R-Greenhouse Gas Calculation Versions 6.0 case study of Rattanatibade School Nonthaburi Province. The results of solid waste from Rattanatibade School Nonthaburi Province are totally 1748 kilogram. Classification of waste by group the results show that other solid waste group had the highest weight. Following by organic waste LDPE plastic cardboard paper (white / black) glass PS plastic PET plastic aluminum newspaper and steel in the quantities 140 90.67 29.05 28.09 27.93 26.51 24.54 21.14 5.33 0.20 kg respectively. When evaluating greenhouse gas emission reduction of solid waste it has found that greenhouse gas emission from solid waste recycled recycling totaled 666.23 KgCO. is the most paper (white / black) is equal to the amount of greenhouse gasses 136.34 KgCO. Following by cardboard LDPE plastic and organic waste. The reduction of greenhouse gases are equal to 113.84 109.03 100.71 KgCOrespectively.

Hydrogen sulfide (H25 cheap materials activated carbon scraped iron sand cement and rice husks applied to the small scale biogas production at 30 ppm within 6 hours. The filter materials with highest to lowest H48.18 percent respectively. In the medium scale biogas production (20 L) at 30 ppm. Scraped iron and sand mixed with activated carbon filter had the best H(200 L) production of the biogas fermentation (30 ppm biogas product) sand mixed with activated carbon filter at the ratio 60:40 displayed the best performances in removing H2(3 day). It is the most environmental friendliness as well as cost-effective filter for biogas fermentation at scale up sizes at least 20 L. S) is found to be one major serious contaminant to biogas production system. In this research the team aimed to develop a high efficient filter for removing H2S from the biogas reaction. From all 2S absorptivity were activated carbon sand scraped iron and rice husks those accounted for 88.02 76.06 55 50 and 2S absorptivity (100 percent) and sand showed its H2S removal efficiency lower at 65 percent respectively. In larger scale S after incubated for 4.5 hours while scraped iron filter as well as activated carbon filter functioned in H2S removal longer time (2 and 3 days respectively). In order to be able to practically apply for continuous filtering H2S from the continuous biogas production sand mixed with activated carbon filter exhibited long last filtration