abstract：:A three phase (aqueous/solid/gas) mixed weak acid/base kinetic model developed by Musvoto et al. is applied to simulate the physical and chemical processes that occur on aeration of anaerobic digester liquors. Included in the model are the kinetic reactions for (i) weak acid/base dissocations (water, carbonate, ammoni...

journal_title：Environmental technology

authors： Wentzel MC,Musvoto EV,Ekama GA

更新日期：2001-11-01 00:00:00

abstract：:An inter-comparison exercise was performed between two laboratories on mineralised moss samples. Ten samples, together with three certified reference materials (CRM 61, CRM 62 and CRM 482) and five blanks were mineralised independently in the two laboratories and then analysed by both with different techniques (AAS, I...

journal_title：Environmental technology

authors： Dapiaggi M,Leva F,Rabuffetti D,Ayrault S,Gaudry A,Cenci RM

更新日期：2001-10-01 00:00:00

abstract：:Studies of odour-control biofilters at two animal rendering plants were conducted. Biofilter influent and effluent gases were characterized using a gas chromatograph-mass spectrometer (GC-MS) and a GC fitted with an odour sniffing port. Overall odour-removal performance of the biofilters was evaluated using forced-cho...

journal_title：Environmental technology

authors： Luo J,Agnew MP

更新日期：2001-09-01 00:00:00

abstract：:In industrial activities, operation of air biofilters may be interrupted for a long period of time. In order to examine the effect of shut-down on the performance of biofilters, a pilot scale biofiltration unit was restarted up after a non-use duration of eight months. After a reacclimation period of eight days, the b...

journal_title：Environmental technology

authors： Elmrini H,Kerdouss F,Jorio H,Heitz M

更新日期：2001-08-01 00:00:00

abstract：:The role of carbonaceous sediment oxygen demand (CSOD) due to oxidation of sulfides reduced in oxygen dynamics in crude oil contaminated salt marshes was investigated through a mathematical model. An existing CSOD model was calibrated from laboratory data sets through nonlinear regression. The effect of oil and fertil...

journal_title：Environmental technology

authors： Shin WS,Pardue JH,Choi SJ

更新日期：2001-07-01 00:00:00

abstract：:The structure and physicochemical characteristics of weathered surfaces of marble in industrial environments can be attributed to the interconnected evolution of the processes taking place at the atmospheric environment--marble interface. The present work is an attempt to correlate the aerosols of a heavily polluted a...

journal_title：Environmental technology

authors： Moropoulou A,Bisbikou K,Van Grieken R,Torfs K,Polikreti K

更新日期：2001-06-01 00:00:00

abstract：:Research was undertaken to investigate the treatment of fishery washing water using Bacillus sphaericus, and to recover the spores for subsequent use as bioinsecticide to control the population of mosquitoes. This treatment method could reduce pollution due to organic matter by decreasing the value of Chemical Oxygen ...

journal_title：Environmental technology

authors： Ariff AB,Rosfarizan M,Sobri MA,Karim MI

更新日期：2001-06-01 00:00:00

abstract：:Five yeast strains, namely Rhodotorula rubra, Candida tropicalis, Candida utilis, Candida boidinii, Trichosporon cutaneum, were isolated from soil spots of a salad oil factory, and applied for continuous treatment of salad oil manufacturing wastewater. The oil and COD removal performance of the mixed cultures were com...

journal_title：Environmental technology

authors： Zheng S,Yang M,Lv W,Liu F

更新日期：2001-05-01 00:00:00

abstract：:This study was conducted to develop a two-stage process for the treatment of Hong Kong leachate. The leachate, containing 4750 mg l-1 of chemical oxygen demand (COD) and 1310 mg l-1 of ammoniacal nitrogen (NH3-N), was first treated in a UASB (upflow anaerobic sludge blanket) reactor at 37 degrees C. The process remove...

journal_title：Environmental technology

authors： Wang P,Lau IW,Fang HH

更新日期：2001-04-01 00:00:00

abstract：:The development of a case-based reasoning system for the supervision of an activated sludge process is presented here. The methodology proposed permits the use of past experiences to solve new problems that arise in the process. These experiences are classified as cases or situations. The adaptation of cases and the g...

journal_title：Environmental technology

authors： Roda IR,Sànchez-Marrè M,Comas J,Cortes U,Poch M

更新日期：2001-04-01 00:00:00

abstract：:A pilot-scale study of tertiary wastewater treatment of the JIZHUANGZI Municipal Wastewater Treatment Plant was carried out by preozonation, coagulation and direct filtration process with the aim of producing wastewater suitable for reuse. The proposed treatment scheme could produce a filtered water with lower turbidi...

journal_title：Environmental technology

authors： Lu SG,Imai T,An DN,Ukita M

更新日期：2001-03-01 00:00:00

abstract：:The potential for phytoremediation of high concentrations of petroleum hydrocarbons is poorly understood. This study examines variations in phytoremediation performance for a soil contaminated with diesel at 6400 mg TPH kg-1 dry mixture. Experiments on diesel-contaminated soil were conducted in cups using 200 g of soi...

journal_title：Environmental technology

authors： Hou FS,Milke MW,Leung DW,MacPherson DJ

更新日期：2001-02-01 00:00:00

abstract：:Current concern over the potentially negative impacts of climate change has brought attention to anthropogenic sources of methane, a primary greenhouse gas. Two such emission sources are methane leakage at heavy oil wells and sanitary landfills. At both of these sources, substantial quantities of methane could potenti...

journal_title：Environmental technology

authors： Stein VB,Hettiaratchi JP

更新日期：2001-01-01 00:00:00

abstract：:Two different organophilic bentonites obtained by cationic exchange with benzyldimethyloctadecylammonium chloride and trimethyloctadecylammonium chloride have been used to adsorb the organic fraction of a tannery sludge. The exchange process was carried out to different extents to obtain bentonite samples with differe...

journal_title：Environmental technology

authors： Cioffi R,Costanzo S,Maffucci L,Santoro L

更新日期：2001-01-01 00:00:00

abstract：:Water softening using the lime process leads to the production of large quantities of sludge. Determining the quantity of sludge produced and its dewatering properties is very important in the design, operation and cost of the subsequent sludge handling facilities. Presented are the results of a study on the partial s...

journal_title：Environmental technology

authors： Suthaker S,Smith DW,Stanley SJ

更新日期：1993-11-01 00:00:00