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 David,
I noted an old (2007) string of Q&A on this website concerning the disposal of aircraft waste + toilet deodorant SkyKem. I am currently working on a similar project for an airport upgrade in Africa. Am I right to conclude that the waste + deodorant, after dilution (how much?), can be added to normal biological sewerage treament systems such as (an)aerobic retention/stabilisation/sedimentation ponds? The skykem chemical will not affect the bacteriological processes? Any additional comments or advise will be most welcome.
Thanks in advance
Answer I did a bit of checking and most of the deodoizers used in planes are biodegradable. You will probably be all right, and won't have any problems. The deodorants I viewed are ready to add to the toilets at about 1/4 oz per gallon of liquid, and are fully biodegradable. So, no problems adding them to the sewage treatment plant.
However, brands and chemical formulations do differ. I suggest that you obtain an MSDS (Material Safety Data Sheet) on the compounds used- from the manufacturer, and they may even be on their websites. Check that for biodegradability and if you have questions, drop me a note.
Bottom line: check, but you probably won't have any problems.
