improved biodegradation of organic chemicals and ground water protection

... contamination Groundwater Groundwater grab sample 0.478 mg/L Benzene Los Angeles, California Gasoline contamination Groundwater Groundwater grab sample 477 ug/L Industrial site Groundwater Groundwater ... Contaminated Groundwater Groundwater grab sample 100 mg/L 33 0.0084/day Chang,BV et al (1997) Natural gas production site-BTEX contamination Groundwater Groundwater grab sample 17.5 mg/L Groundwater Groundwater ... contamination Groundwater Groundwater grab sample 0.478 mg/L 0.16/day Morgan,P et al (1993) Benzene Vejen City, Jutland, Denmark Uncontaminated landfill site Groundwater + sterile quartz Groundwater...

Ngày tải lên: 28/03/2014, 19:20

... and concentrations of selected inorganic and organic chemicals from surface and ground water samples from OSPER ‘A’ and ‘B’ sites and adjoining areas in Osage County, OK are listed in Table and ... saline water that affect groundwater supplies Accidental releases of produced water and petroleum and the improper disposal of produced water are national issues that concern managers of Federal, and ... These and other chemical properties and water isotopes that are different for produced and ground waters (Fig 6) are used to investigate the impact of produced water on the surface and ground waters...

Ngày tải lên: 14/02/2014, 03:20

... summarizing field and laboratory studies on anaerobic biodegradation of organic compounds The report entitled “Anaerobic Biodegradation of Organic Chemicals in Groundwater: A Summary of Field and Laboratory ... Principles and Applications, R.L Crawford and D.L Crawford, Cambridge University Press, 1996 Syracuse Research Center Anaerobic Biodegradation of Organic Chemicals in Groundwater: A Summary of Field and ... consumption of oxygen or nitrate that was supported by the electron acceptor demand of materials in the landfill leachate Consequently, the rate of supply of oxygen and nitrate into impacted ground waters...

Ngày tải lên: 28/03/2014, 19:20

... agricultural land use with farms, mainly cropping rice and fruits Some of the farms maintain small animal husbandries and fishponds Surface water, rain water and ground water are used for the drinking and ... aquifer which consists of middle to coarse sand Methods For the appraisal of the surface water and ground water resources water sampling and analyses regarding the chemical and microbiological conditions ... 2000: Availability and Quality of Groundwater Resources, Ministry of Industry, Department of Geology and Minerals Division of Hydrogeology and Engineering Geology for the South of Vietnam (DHES),...

Ngày tải lên: 16/01/2014, 17:20

... E.T., and Holmes, J., 2008, Investigation of organic chemicals potentially responsible for mortality and intersex in fish of the North Fork of the Shenandoah River, Virginia, during spring of 2007: ... Investigation of Organic Chemicals in the North Fork of the Shenandoah River, Virginia, Spring 2007 sampler potentially can sample tens to hundreds of liters (L) of water, detecting chemicals present ... by the addition of 200 microliters (μL) of 4   Investigation of Organic Chemicals in the North Fork of the Shenandoah River, Virginia, Spring 2007 dichloromethane and 200 μL of percent methoxyamineHCl...

Ngày tải lên: 14/02/2014, 08:20

... the groundwater, resulting in contamination of 400 000 m3 of groundwater The plume of contaminated groundwater reaches a depth of at least 50 m and is 250 m in length Application The design of ... level Tj groundwater table at -1.8m -14 m silty sand and clay -30 m fine and coarse sand -150 m below surface Fig Overview of the subsoil The extent and degree of soil and groundwater contamination ... of the volume of this water and the volume of the pores in the soil to be flushed The time needed and the amount of water (flush factor) are estimated based on experience with similar types of...

Ngày tải lên: 14/02/2014, 08:20

... than that for organic chemicals The production technology for biosynfuels and organic chemicals not differ principally However, liquid organic fuels belong to the cheapest organic chemicals • Bioenergy ... thermal decomposition of biomass and the condensation of organic tar vapors and reaction water vapors take place in the course of one or few seconds High condensate yields of 45 to 75 wt.% are ... mix of or 1.5 g of a commercial Cu/ZnO/Al2O3 methanol catalyst and or 0.5 g of g-Al2O3 as a dehydration catalyst, with a grain size of ca 0.5 mm and a volume of ca ml Operating pressure and temperature...

Ngày tải lên: 14/03/2014, 19:20

... procedures for determination of organic compounds in finished drinking water, source water, or drinking water in any treatment stage The method is applicable to a wide range of organic compounds that ... µg/L for most analytes SUMMARY OF METHOD Organic compound analytes, internal standards, and surrogates are extracted from a water sample by passing L of sample water through a cartridge or disk ... mammalian carcinogens Pure standard materials and stock standard solutions of these compounds should be handled with suitable protection to skin, eyes, etc EQUIPMENT AND SUPPLIES (All specifications...

Ngày tải lên: 22/03/2014, 14:20

... properties and biological effects of specic groups of organic chemicals with respect to their potential and observed fate in constructed wetlands may help rening articial wetland design and operation ... poplar treatment of carbon tetrachloride contaminated water 2.2.2 Microbial degradation The nature and extent of microbial degradation of organic chemicals within a constructed wetland is also expected ... Three zones of enlargement are depicted by rectangles and correspond to the soilwater interface in the unsaturated layer of the wetland (A), the saturated rooted zone (B) and the wetland sand matrixpolishing...

Ngày tải lên: 28/03/2014, 19:20

... Journal of Water and Environment Technology, Vol 6, No.1, 2008 Ministry of Health, Labour and Welfare of Japan (2003) Summary and Individual Agricultural Chemicals Date Base for Revision of Water ... Journal of Water and Environment Technology, Vol 6, No.1, 2008 Preparation of Composite Samples To prepare 10 mg-AC/L of aqueous solution, 100 mg of AC was dissolved into mL of ethanol and 400 µL of ... Concentration of Mutagens J Water and Waste, 39(2), 163-168 (in Japanese) Urano K., Okabe F., Takanashi H and Fujie K (1995) Ames Mutagenicity of Tap Water III Analysis of Mutagenicity Level of Tap Water...

Ngày tải lên: 05/09/2013, 09:38

... specific emissions and resource consumption in the production of “Large Volume Organic Chemicals It has been written in order to describe the state of art for the production of organic chemicals which ... Volume Organic Chemicals It has been written in order to describe the state of art for the production of organic chemicals, which are produced in Austria The study was drawn up in view of the ... the reduction of air emissions of different pollutants This list of techniques is based on experiences of Austrian plants and a comparison of relevant literature The last chapter of this study...

Ngày tải lên: 14/02/2014, 03:20

... harm to biota and humans Urban stormwaters and sediments are known to contain a multitude of inorganic and organic chemicals from numerous human sources While urban stormwaters in Auckland have been ... for future studies and comparisons with overseas locations Literature Review of Organic Chemicals of Emerging Environmental Concern in Use in Auckland 2 2.1 Review of Chemicals of Potential Environmental ... review of organic chemicals in use and of potential ecotoxicological concern in Auckland was therefore timely For this purpose, ARC commissioned NIWA to review major classes of organic chemicals...

Ngày tải lên: 14/02/2014, 03:20

... model of one of the world's largest PVC complexes ARVAND Petrochemical Co., Bandar Imam, Iran Capacities of the complex: 570,000 t/year of chlorine 329,000 t/year of sales EDC 343,000 t/year of ... PET 20 4.6 Polyamide and special polymers 22 Organic chemicals and polymers Plastics have become an indispensable material in everyday life and are used in a wide variety of technical applications ... level of productivity, availability, economic viability and environmental compatibility For decades now, Uhde has been a leading force in the construction of plants for organic chemicals and polymers...

Ngày tải lên: 14/02/2014, 08:20

... stages of fish Toxicity of Capacitor 21 to embryo-larval stages of fish •••• Toxicity of chlorobenzene to embryo-larval stages of fish • • • Toxicity of chloroform to embryo-larval stages of rainbow ... liter sample of test water were ml of ammonium chloride (50 g/l), ml of 0.5 N ammonium hydroxide, ml of aminoantipyrine (12 gIl), and ml of potassium ferricyani~e (48 gIl) After standing 0.5 to ... both hard and soft water (P < 0.01) In tests conducted with goldfish, the LeI values at days posthatching were 10 pgll in soft water and 33 pgll in hard water (Table 8) Frequencies of teratic...

Ngày tải lên: 05/03/2014, 20:20

... pollution of soil and groundwater, and 2) generally, the uptake of contaminants in crops is of great significance, because ultimately, this leads to consumer exposure to a wide range of environmental ... lipophilicity and root uptake and translocation of non-ionized chemicals by barley Pesticide Science 13, 495-504 CambridgeSoft Corporation, ChemBioFinder.com (http://chembiofinderbeta.cambridgesoft.com/) ... matrix, and the calibration of the method Currently, no accepted standard methods exist for the determination of VOCs (volatile organic compounds) in plant tissues (Alvarado and Rose, 2004) And no...

Ngày tải lên: 05/03/2014, 20:20

... 101111 AcOH and diluted with 50ml of H20, (B) 5g KI in lOOml of H20 and (C) 0.3g ninhydrin in lOml of AcOH and 90ml of H20 The spray is prepared by mixing (A) and (B) with 1.5ml of (C) and stored ... five batches of 100-15Og of anhydrous CaC12 (Water content of the solvent was then less than 0.2%) It was shaken for l h with log of 68 Purification of Organic Chemicals P2O5, twice, and distd in ... in the presence of 2g CrO3 per lOOml and then 66 Purification of Organic Chemicals fractionally distilling [Orton and Bradfield JCS 960 1924,983 19271 Instead of CrO3,2-5% (w/w) of KMn04, with...

Ngày tải lên: 05/03/2014, 21:20

... and developing countries alike have strong incentives to adopt, implement and enforce laws to address freshwater and groundwater pollution Clean water from surface water (rivers and lakes), groundwater ... ©Encyclopedia of Life Support Systems (EOLSS) ENVIRONMENTAL LAWS AND THEIR ENFORCEMENT – Vol I - Laws Governing Freshwater and Ground Water Pollution Robert W Adler the ethical sensibilities of people and ... Law and Liability Railton W.S (1998) The Rhetoric and Reality of Water Quality Protection in China, Pacific Rim Law and Policy Journal 859 Reid D.A (1992) Regulation of Non-point Source Water...

Ngày tải lên: 06/03/2014, 23:20

... weighted average of the heat capacities of soil solids, CR, and water, Cw The weighting depends on the porosity, φ, densities of solids, ρR, and water, ρw, and the degree of water saturation, ... temperature of water This amount of heating will increase the rates of both degradation and recovery Hydrous pyrolysis may oxidize organic contaminants under some conditions, and the rate of biodegradation ... amount of heating required The mass of water in soils varies significantly with the type of soil, and hence, porosity and the percent saturation of the soil pore space (Table 7-3) The amount of water...

Ngày tải lên: 14/03/2014, 19:20

Ngày tải lên: 22/03/2014, 14:20

... Mean water temperature Weight of organism Lipid content of organism Lipid content of lowest trophic level organisms Concentration of particulate organic carbon Concentration of dissolved organic ... Jon A Arnot and Frank A P C Gobas where cPOC is the concentration of particulate organic carbon in the water (g/ml) and cDOC is the concentration of dissolved organic carbon in the water (g/ml) ... derivation of a trophic dilution factor for a group of PAHs In this example, the model is fitted to available BCF and BAF data, resulting in a kM of 0.05 dÀ and a t of 0.013 t counteracts b and essentially...

Ngày tải lên: 22/03/2014, 14:20