خيارات البحث
النتائج 121 - 130 من 374
The uptake of cadmium and zinc by the bird-cherry oat aphid Rhopalosiphum padi (Homoptera: Aphididae) feeding on wheat grown on sewage sludge amended agricultural soil
1997
Merrington, G. | Winder, L. | Green, I. (School of Conservation Sciences, Bournemouth University, Talbot Campus, Poole, Dorset, BH12 5BB, UK)
The uptake of particulates by an urban woodland: site description and particulate composition
1997
Freer-Smith, P.H. | Holloway, S. | Goodman, A. (Forestry Commission Research Division, Alice Holt Lodge, Wrecclesham, Farnham, Surrey, GU10 4LH, UK)
Evaluation of ozone injury on foliage of black berry (Prunus serotina) and tall milkweed (Asclepias exaltata) in Great Smoky Mountains National Park
1997
Chappelka, A. | Renfro, J. | Somers, G. | Nash, B. (School of Forestry, Auburn University, Auburn, AL 36849 (USA))
Biological variation in sensitivity to N-heterocyclic PAHs; effects of acridine on seven species of micro-algae
1997
Dijkman, N.A. | Vlaardingen, P.L.A. van | Admiraal, W.A. (Amsterdam Research Institute for Substances in Ecosystems (ARISE), University of Amsterdam, Department of Aquatic Exotoxicology, Kruislaan 320, 1098 SM, Amsterdam (Netherlands))
Polychlorinated biphenyls and organochlorine pesticides in eels (Anguilla anguilla L.) from Welsh rivers
1997
Weatherley, N.S. | Davies, G.L. | Ellery, S. (Environment Agency, Rio House, Waterside Drive, Aztec West, Almondsbury, Bristol BS12 4UD (United Kingdom))
Environmental concerns in the Laguna de Bay basin [Philippines]
1997
Tomboc, C.C. | Francisco, F.F. (Laguna Lake Development Authority, Pasig, Metro Manila (Philippines))
Bioprocess development for biosorption of toxic heavy metals from industrial effluents
1997
Mohd Razman Salim | Zaharah Ibrahim | Abu Bakar baba (Universiti Technologi Malaysia, Skudai Johor Darul Ta'zim (Malaysia). Dept. of Environmental Engineering)
Pollution of the environment by toxic metals arises as a result of human activities such as industrial, agricultural, mine-drainage and sewage disposal. Once in the environment, the metal undergo several forms of transformations. The removal of toxic metal is of great significance from the environmental and industrial point of view. The increased in sound environment and stringent legal requirements has led to the need for cost effective treatment technology for metal pollution control. Biological treatment processes using microbial biomass are known capable of treating industrial waste successfully. The initial aim of the project was to screen a number of metal-tolerant organisms and develop microbial strain capable of detoxification, biosorption and recovery of heavy metals. Due to limited knowledge based studies on several industrial wastes are necessary to determine the potential strains as well as the viable technique to be used in recovery/removal of heavy metals
اظهر المزيد [+] اقل [-]Role of EM (effective microorganisms) in sustainable growth
1997
Ono, H. (Larutan Resources Development Corp., Makati City (Philippines))
Isolation, identification and bioremediation potential of oil-degrading bacteria from Manila Bay and Pasig River [Philippines]
1997
Dela Cruz, J. | Halos, P.M.
Oil-degrading bacteria were isolated from waters and sediments of the Manila Bay and Pasig River [Philippines]. Five types of bacteria were isolated from Manila Bay and four from Pasig River. The identified crude oil degrading species are Vibrio sp., Alcaligenes sp., Flavobacterium indologenes and Acinetobacter sp. from Manila Bay, and Pseudomonas aeruginosa, Bacillus sp., Micrococcus sp. and Pseudomonas putida from Pasig River. These isolates were identified through morphological and physiological characterization. The bioremediation potential for each of the isolates was assessed. The percentages oil conversion for the bacterial isolates ranged from 2.99 percent - 53.44 percent in one week's time. Alcaligenes sp. exhibited the highest biodegradation potential for all isolates. Statistical analysis revealed that the mean percentages diesel oil conversion by the isolates were significantly higher than their mean percentages crude oil conversion. Pure and mixed cultures did not give significant differences in their mean percentages crude oil conversion
اظهر المزيد [+] اقل [-]Key water quality parameters for sustainable development of Laguna de Bay, Philippines
1997
Barril, C.R. | Tumlos, E.T. (Philippines Univ. Los Banos, College, Laguna (Philippines). Inst. of Chemistry)