AboutDavid L. Russell, PE Expertise I`m a Chemical,Civil and Environmental Engineer and have a number of projects in all phases of the environment.
I have worked in the chemical industry and am active in professional societies, and am currently on an industrial wastes committee for the Water Environment Federation, and have taught courses in remediation in the US and abroad.
I have written one book on Remediation of petroleum Contaminated Sites, and have a second book on PRACTICAL WASTEWATER TREATMENT to be published by John Wiley in September, 2006. I've also written over 30 articles on various elements of environmental problems and cleanup. Most Recently, I have addressed a NATO Scientific and Techical Conference on Ecoterrorism, and have worked with the same group on remediation of sites contaminated with Chemical Warfare Agent materials and othe materials as well. . I can answer q`s about Chemical and Environmental Engineering, land development, air pollution, water pollution, soil and water cleanup, combustion, international environmental problems, industrial processes chemical processes. Civil and Environmental and Chemical Engineering. Overall, I have over 35 years of experience in this area. Note: I do not answer homework questions
Experience I love work in the third world and developing areas
because it is challenging and one can get a sense of accomplishment.
Question Dear Expert,
I have heard a lot about coal gen. I tried to research coal gen, and I'm confused. Is coal gen a gasification process or a process where coal is turned to liquid, or a combination?
Thanks,
Adam
Answer There seem to be two schools of thought on Coal Gen. One is the gassification school and the other is the coal power school. Potentially there is little difference between the two in terms of the ultimate purpose...electricity. One process uses something like pyrolysis to make a gas, and this leaves behind a clean burning coke. The other process is more akin to straight power generation. There are other combinations somewhere in between, so it's really a catch all and you weren't far off the mark. If you are going to liqueify coal, you have to use some type of carrier fluid because coal itself is not liquid except at several thousand degrees, and that has its own set of problems.
Hope that helps
Dave Russell
