Effect of reactor configuration on performance during anaerobic treatment of low strength wastewater.

abstract：:Dissolved organic matter (DOM) in soluble microbial products (SMP), loosely bound (LBEPS) and tightly bound extracellular polymeric substances (TBEPS) were extracted from wastewater sludge, fractionated by size exclusion chromatography and characterized by ultraviolet absorbance at 230, 254 and 280 nm, the dissolved o...

journal_title：Environmental technology

authors： Tsai BN,Chang CH,Lee DJ

更新日期：2008-10-01 00:00:00

abstract：:In order to enhance anaerobic biodegradability of food waste (FW), thermal pretreatment was applied. The effectiveness in terms of biodegradability extent and process rate improvement was investigated. To this aim, Biomethane Potential tests were carried out under mesophilic and thermophilic conditions. The IWA anaero...

journal_title：Environmental technology

authors： Montecchio D,Gallipoli A,Gianico A,Mininni G,Pagliaccia P,Braguglia CM

更新日期：2017-06-01 00:00:00

abstract：:Ultraviolet (UV) technologies have been very successful in disinfection applications due to their ability to inactivate microorganisms without producing harmful disinfection by-products. However, there have been a number of concerns associated with the use of conventional UV systems such as hazardous mercury content, ...

journal_title：Environmental technology

authors： Ibrahim MA,MacAdam J,Autin O,Jefferson B

更新日期：2014-01-01 00:00:00

abstract：:The reaction between Fe2+ and H2O2 generates highly reactive ·OH. However, the weak conversion from Fe3+ to Fe2+ limits its continuous reaction. Here, the difference between the Fenton system and modified Fenton system for the regeneration of Fe2+ was analyzed. A UV-vis spectrometer and redox potential measurements we...

journal_title：Environmental technology

authors： Zhou W,Gao J,Zhao H,Meng X,Wu S

更新日期：2017-08-01 00:00:00

abstract：:Landfill leachates are considered to be complex effluents of a variable composition containing many biorecalcitrant and highly toxic compounds. Considering the shortage of studies concerning the treatment of landfill leachates using ozone, as well as its combination with catalysts, the aim of this paper was to identif...

journal_title：Environmental technology

authors： Scandelai APJ,Sloboda Rigobello E,Oliveira BLC,Tavares CRG

更新日期：2019-02-01 00:00:00

abstract：:Biological nutrient removal (BNR) in municipal wastewater treatment to remove carbonaceous substrates and nutrients, has recently become increasingly popular worldwide due to increasingly stringent regulations. Biological fluidized bed (BFB) technology, which could be potentially used for BNR, can provide some advanta...

journal_title：Environmental technology

authors： Cui Y,Nakhla G,Zhu J,Patel A

更新日期：2004-06-01 00:00:00

abstract：:The adsorption-desorption of copper ions and a mixture of five metal ions (cadmium, copper, nickel, lead and zinc) in aqueous solutions by a spruce sawdust column was reported. Different studies about the copper binding mechanism, the efficiency of some regenerating solutions for the copper desorption, the use of colu...

journal_title：Environmental technology

authors： Marin J,Ayele J

更新日期：2003-04-01 00:00:00

abstract：:The efficiency of an anaerobic biological treatment for the reduction of essential contaminants of produced water from an offshore oilfield was investigated using a microbial consortium enriched with sulphate-reducing bacteria (SRB). Experiments were conducted in a bench bioreactor at 35 degrees C, 250 rpm, with inter...

journal_title：Environmental technology

authors： Vieira DS,Sérvulo EF,Cammarota MC

更新日期：2005-08-01 00:00:00

abstract：:It is the priority to guarantee biosafety for drinking water treatment. The objective of this study was to evaluate the impact of widely applied conventional and ozone-biological activated carbon (O3-BAC) advanced treatment technology on biosafety of drinking water. The items, including assimilable organic carbon (AOC...

journal_title：Environmental technology

authors： Liao X,Zou R,Chen C,Yuan B,Zhou Z,Zhang X

更新日期：2018-01-01 00:00:00

abstract：:Micelle enhanced ultrafiltration (MEUF) is a surfactant-based membrane separation process that may be used to separate target ions from mixed metal aqueous solutions, such as leachates of coal ash and other geological wastewaters. The ability of MEUF to separate rare earth elements (REEs) was evaluated using sodium do...

journal_title：Environmental technology

authors： Kose-Mutlu B,Hsu-Kim H,Wiesner MR

更新日期：2020-09-22 00:00:00

abstract：:Acid-functionalized multi-walled carbon nanotube (MWCNTs-COOH) was prepared by acid treatment followed by decoration with magnetite (Fe3O4) nanoparticles (Fe3O4/MWCNTs-COOH) by co-precipitation of Fe2+/Fe3+ in the colloidal suspension of MWCNTs-COOH. The adsorption capacity and separation efficiency of these two adsor...

journal_title：Environmental technology

authors： Temnuch N,Suwattanamala A,Inpaeng S,Tedsree K

更新日期：2020-03-18 00:00:00

abstract：:Liquid-state bioconversion (LSB) technique has great potential for application in bioremediation of sewage sludge. The purpose of this study is to determine the optimum level of LSB process of sewage sludge treatment by mixed fungal (Aspergillus niger and Penicillium corylophilum) inoculation in a pilot-scale bioreact...

journal_title：Environmental technology

authors： Rahman RA,Molla AH,Barghash HF,Fakhru'l-Razi A

更新日期：2016-01-01 00:00:00

abstract：:This work presents the results obtained in the treatment of industrial pulp mill wastewater (black liquor) with the white-rot fungus Trametes versicolor immobilised in nylon and polyurethane foam cubes. Reductions in colour (36%), aromatic compounds (54%) and toxicity (3.15 times reduction of the initial value) were o...

journal_title：Environmental technology

authors： Font X,Caminal G,Gabarrell X,Vicent T

更新日期：2006-08-01 00:00:00

abstract：:Permeable bioreactors have gained both research and management attention as viable methods for treating mine runoff waters. We examined the operation of a field-scale bioreactor (containing mixed compost, straw and gravel) for treatment of runoff from the Mother Load (ML) mine in northern Idaho, U.S. and compared it t...

journal_title：Environmental technology

authors： Christian D,Wong E,Crawford RL,Cheng IF,Hess TF

更新日期：2010-12-14 00:00:00

abstract：:The effects of bore diameter and particle size of polyurethane (PU) foam on soil wastewater infiltration system as well as its anti-clogging mechanism were investigated in this study. Different types of PU were used to determine the effect of bore diameter and particle size on the chemical oxygen demand (COD) removal....

journal_title：Environmental technology

authors： Yuan H,Nie J,Gu L,Zhu N

更新日期：2016-12-01 00:00:00

abstract：:Pilot-scale moving bed biofilm reactor (MBBR) is used to investigate the kinetics and biofilm response of municipal, tertiary nitrification at 1°C. The research demonstrates that significant rates of tertiary MBBR nitrification are attainable and stable for extended periods of operation at 1°C, with a maximum removal ...

journal_title：Environmental technology

authors： Young B,Delatolla R,Ren B,Kennedy K,Laflamme E,Stintzi A

更新日期：2016-08-01 00:00:00

abstract：:Three kinds of titania/silica pellets were prepared using the sol-gel method with surface areas of 50.4 m2 g(-1), 421.1 m2 x g(-1) and 89.1 m2 x g(-1). An annular reactor was designed and built to determine the degradation efficiency of toluene and to investigate the relationship between the adsorption and desorption-...

journal_title：Environmental technology

authors： Luo Y,Zou L,Hu E

更新日期：2006-04-01 00:00:00

abstract：:Partial nitritation is an essential first step in anaerobic ammonium oxidation. This study compared the performance of air-lift partial nitritation reactors with attached growth (AG) and suspended growth (SG) without biomass retention using ammonium-rich recirculated liquor produced from the dewatering of anaerobicall...

journal_title：Environmental technology

authors： Choi J,Ahn Y

更新日期：2014-05-01 00:00:00

abstract：:Moringa oleifera extract is a high-capacity flocculant agent for turbidity removal in surface water treatment. A complete study of a pilot-plant installation has been carried out. Because of flocculent sedimentability of treated water, a residual turbidity occured in the pilot plant (around 30 NTU), which could not be...

journal_title：Environmental technology

authors： Beltrán-Heredia J,Sánchez-Martín J

更新日期：2009-05-01 00:00:00

abstract：:The goal of this research is to find a more effective treatment for tequila vinasses (TVs) with potential industrial application in order to comply with the Mexican environmental regulations. TVs are characterized by their high content of solids, high values of biochemical oxygen demand (BODs), chemical oxygen demand ...

journal_title：Environmental technology

authors： Retes-Pruneda JL,Davila-Vazquez G,Medina-Ramírez I,Chavez-Vela NA,Lozano-Alvarez JA,Alatriste-Mondragon F,Jauregui-Rincon J

更新日期：2014-08-01 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：:Partial nitrification of a high-strength ammonium wastewater (1150 +/- 150 mg N-NH4(+) L(-1)), mimicking reject water, was achieved in an activated sludge pilot plant with a configuration of three continuous reactors in series plus a settler. Stable and robust partial nitrification was maintained during 800 days of op...

journal_title：Environmental technology

authors： Torà JA,Lafuente J,Carrera J,Baeza JA

更新日期：2012-06-01 00:00:00

abstract：:Problems have been found in the traditional post-positioned down-flow biological activated carbon filter (DBACF), such as microorganism leakage and low biodegradability. A pilot test was carried out to place a BACF between the sediment tank and the sand filter; a new technology of dual media up-flow aerated biological...

journal_title：Environmental technology

authors： Lu S,Liu J,Li S,Biney E

更新日期：2013-07-01 00:00:00

abstract：:This paper discusses decolorization and chemical oxygen demand (COD) abatement in olive mill wastewaters (OMW) by Phanerochaetae chrysosporium grown in static, suspended and immobilised cultures. When P chrysosporium is used in cultures, no decolorization of crude OMW is observed. Decolorization occurs only after remo...

journal_title：Environmental technology

authors： Mebirouk M,Sbai L,Lopez M,Gonzalez J

更新日期：2006-12-01 00:00:00

abstract：:The production of extracellular protease by different Bacillus licheniformis strains (ATCC 21415, ATCC 21417 and ATCC 21424) was tested in wastewater sludge as a raw material as well as in synthetic soy medium to compare the capacity of protease production by different strains and to compare the capacity of the medium...

journal_title：Environmental technology

authors： Bezawada J,Yan S,Tyagia RD,Surampalli RY

更新日期：2010-01-01 00:00:00

abstract：:A novel system integrating an upflow anaerobic sludge blanket (UASB) reactor and a two-stage biological aerated filter (BAF) system was investigated as advanced treatment of heavy oil wastewater with large amounts of dissolved recalcitrant organic substances and low levels of nitrogen and phosphorus nutrients. #1 BAF,...

journal_title：Environmental technology

authors： Zou XL

更新日期：2015-01-01 00:00:00

abstract：:Heavy metal removal from sewage sludge ash can be performed by mixing the ash with environmentally compatible chlorides (e.g. CaCl2 or MgCl2) and water, pelletizing the mixture and treating the pellets in a rotary reactor at about 1000 degrees C. Thermogravimetry-mass spectroscopy, muffle oven tests (500-1150 degrees ...

journal_title：Environmental technology

authors： Nowak B,Wegerer H,Aschenbrenner P,Rechberger H,Winter F

更新日期：2012-10-01 00:00:00

abstract：:To avoid bacterial contamination due to medium replacement in the expanded application of a photosynthesis-fermentation model, an integrated photosynthesis-fermentation hybrid system was set up and evaluated for algal lipid production using Chlorella protothecoides. In this system, the CO2-rich off-gas from the fermen...

journal_title：Environmental technology

authors： Lu Y,Dai J,Wu Q

更新日期：2013-07-01 00:00:00

abstract：:A mathematical model modified from the well established Activated Sludge Model no. 1 was used for modelling a full-scale wastewater treatment plant (WWTP) in a bleached kraft pulp mill. Effluents from the pulp and paper industry are typically nutrient deficient, which was considered in the model. The wastewater charac...

journal_title：Environmental technology

authors： Keskitalo J,Jansen Jl,Leiviskä K

更新日期：2010-04-14 00:00:00

abstract：:With their wide application, some nanomaterials entering into the environment and made effects in many ways. Different concentrations of Fe3O4 nanoparticles (NPs) were added (0, 100, 200, 400 and 600 mg/L) in this study, the changes of substance in three stages of anaerobic digestion (AD) were explored, the optimal do...

journal_title：Environmental technology

authors： Gong L,Yang X,You X,Wang J,Zhou J,Zhou Y,Yang J

更新日期：2019-10-09 00:00:00