With the rapid technological progress of society and increasingly stringent environmental regulations, further reduction emissions has become an important issue for protection. This study developed a response surface model with biodiesel blending ratio (BBR), load, exhaust gas recirculation (EGR) as independent variables brake thermal efficiency (BTE), specific fuel consumption (BSFC), NO x , C...

water quality trading is a new approach in pollution control which satisfies water quality standards suggesting minimum cost solutions. this method uses tradable discharge permits based on pollution transfer coefficient in a river. this paper tries to establish a water quality trading program in a river basin according to transfer coefficients between pollution sources and evaluate cost effecti...

according to the global fuel crisis, it seems necessary to use alternative fuel instead of gasoline. since the natural gas is cheaper, have higher frequency than gasoline and less pollution, it is a suitable fuel. many efforts have been done in order to replace gasoline with natural gas. one of the methods is to inject natural gas and gasoline fuel simultaneously and to use the benefits of both...

The main objective of this study is to evaluate qualitatively and quantitatively the effect of starvation periods in the biodegradation capacity of microorganisms when the support media is a material with high sorption capacity. Pollutant sorption and biodegradation, which occur simultaneously in the biofilter, describe the overall behavior of the air treatment system during normal operation an...

This paper presents a novel Neural Network application in order to estimate Air Pollutant Levels. The application considers both Pollutant concentrations and Meteorological variables. In order to compute the Air Pollutant Level the method considers three important stages. In first stage, A process to validate data information and built a threedimensional Information Feature Vector with Pollutan...

Tembuku River is one of the tributaries Batanghari in Jambi City which located across Thehok Village to Simpang Lampu Merah Sijenjang-Pasar Kasang. has highest pollution level compared other with BOD value upstream 38,5 mg/l and downstream 86 mg/l, COD 42,5 95 mg/l. This research was conducted analyze pollutant Load Capacity Biochemical Oxygen Demand (BOD) Chemical (COD) that can be received by...