Equilibrium and kinetics of metal biosorption by sludge from a biological nutrient removal system.

abstract：:This study investigated the effect of various intermittent aeration (IA) cycles on organics and nutrient removal, and microbial communities in an integrated fixed-film activated sludge (IFAS) reactor treating municipal waste water. Average effluent biological oxygen demand (BOD), chemical oxygen demand (COD), total su...

journal_title：Environmental technology

authors： Singh NK,Bhatia A,Kazmi AA

更新日期：2017-11-01 00:00:00

abstract：:A hybrid liquid membrane process was used to remove cadmium cation from a solution using bis-(2-ethylhexyl) phosphoric acid as the carrier for the first time. Different polyethersulphone supporting membranes were prepared by a phase inversion technique. The prepared membrane could be efficiently used as the supporting...

journal_title：Environmental technology

authors： Garmsiri M,Mortaheb HR,Amini MH

更新日期：2015-01-01 00:00:00

abstract：:Two phosphate-solubilizing bacterial strains were isolated and identified as Acinetobacter calcoaceticus YC-5a and Enterobacter agglomerans KMC-7 based on the 16S rRNA gene sequence analysis. A. calcoaceticus YC-5a is less well known as a phosphate-solubilizing plant-associated bacterium. The plant growth-promoting pr...

journal_title：Environmental technology

authors： Ren YX,Zhu XL,Fan DD,Ma P,Liang LH

更新日期：2013-01-01 00:00:00

abstract：:One of the requirements for environmental engineering, which is currently being considered, is the removal of ethylene glycol (EG) as a hazardous environmental pollutant from industrial wastewater. Therefore, in a recent study, a moving bed biofilm reactor (MBBR) was applied at pilot scale to treat industrial effluent...

journal_title：Environmental technology

authors： Hassani AH,Borghei SM,Samadyar H,Ghanbari B

更新日期：2014-01-01 00:00:00

abstract：:The assessment of vermicompost (VC) as a low-cost and alternative adsorbent for the removal of the pesticide methylparathion (MP) from an aqueous medium has been investigated by batch and column experiments. Parameters related to MP adsorption, i.e. equilibrium time (61.5 min) and adsorption pH (6.8) were optimized by...

journal_title：Environmental technology

authors： Mendes CB,Lima Gde F,Alves VN,Coelho NM,Dragunski DC,Tarley CR

更新日期：2012-01-01 00:00:00

abstract：:The distribution and accumulation of heavy metals in the sediments of two rivers which cross various agglomerations of Tangier city, Morocco, were investigated. Surficial sediment samples were collected during 2005 and characterized for metal content (Zn, Pb, Cd, Cu, Cr and Ni), organic matter, total nitrogen, and n-h...

journal_title：Environmental technology

authors： Rodríguez-Barroso MR,Benhamou Y,Coello D,El Moumni B,García-Morales JL

更新日期：2010-02-01 00:00:00

abstract：:Effects of Mo(6+) concentration on phototrophic hydrogen production of Rhodobacter sphaeroides were investigated using lactate as the sole carbon source. Results showed that an increase of Mo(6+) from nil to 1000 microg l(-1) led to increases in hydrogen yield, maximum production rate, conversion efficiency, biomass y...

journal_title：Environmental technology

authors： Fang HH,Li RY,Zhang T

更新日期：2011-08-01 00:00:00

abstract：:Red mud, an industrial by-product generated during the processing of bauxite ore, was investigated as an inexpensive and effective adsorbent for the adsorption of methylene blue from aqueous solution. Chemical and heat treatments were applied to the raw red mud. The effects of contact time, adsorbent amount, pH, tempe...

journal_title：Environmental technology

authors： Coruh S,Geyikçi F,Ergun ON

更新日期：2011-08-01 00:00:00

abstract：:Confined animal feeding operations are producing large amounts of organic waste with large fractions being mixtures of manure and sawdust. On one hand, the inhomogeneity of the material and the high water content restrict the optimal application of thermal treatment methods. On the other hand, the high concentration o...

journal_title：Environmental technology

authors： Talley A,Heimann R,Vakalis S

更新日期：2018-07-01 00:00:00

abstract：:Soils collected from five locations in the argan forest (an endemic plant) in Morocco were used to form the first collection of Bacillus thuringiensis (Bt) strains from this area (58 strains). Here we found that the argan forest is a major source of Bt, as 90.62% of the samples contained Bt strains. These strains prod...

journal_title：Environmental technology

authors： Aboussaid H,Vidal-Quist JC,Oufdou K,El Messoussi S,Castañera P,González-Cabrera J

更新日期：2011-08-01 00:00:00

abstract：:Extracts from four Chinese herbs, Phellodendri chinensis cortex, Artemisia annua L., Scutellaria baicalensis G. and Citrus reticulate peel were tested for their algicidal effects on Microcystis aeruginosa and Chlorella pyrenoidosa. The results showed that M. aeruginosa was more susceptible than C. pyrenoidosa. The gro...

journal_title：Environmental technology

authors： Ye L,Qian J,Jin S,Zuo S,Mei H,Ma S

更新日期：2014-05-01 00:00:00

abstract：:This study compares the operation of mesophilic and thermophilic anaerobic digestion of sewage sludge and their effects in uncontrolled phosphorus precipitation. The research has been carried out using a pilot plant consisting of two digesters of 1.6 m3 working volume, treating the mixed sludge of Alzira WWTP (Valenci...

journal_title：Environmental technology

authors： Sánchez-Ramírez JE,Pastor L,Martí N,Claros J,Doñate S,Bouzas A

更新日期：2019-10-29 00:00:00

abstract：:This study presents a comparison of denitrification rates and denitrification stoichiometry when using different sources of carbon. Denitrification tests were carried out in test bottles containing water and soil samples acquired at a nitrate-contaminated site and supplemented with either sucrose, acetate or ethanol. ...

journal_title：Environmental technology

authors： Lorrain MJ,Tartakovsky B,Peisajovich-Gilkstein A,Guioti SR

更新日期：2004-09-01 00:00:00

abstract：:Activated carbon (AC), prepared from sugarcane bagasse waste through a low-temperature chemical carbonization treatment, was used as a support for nano-TiO2. TiO2 supported on AC (xTiO2-AC) catalysts (x = 10, 20, 50, and 70 wt.%) were prepared through a mechano-mixing method. The photocatalysts were characterized by R...

journal_title：Environmental technology

authors： El-Salamony RA,Amdeha E,Ghoneim SA,Badawy NA,Salem KM,Al-Sabagh AM

更新日期：2017-12-01 00:00:00

abstract：:A pilot-scale biotrickling filter (BTF) packed with polyurethane (PU) foam was installed at one pharmaceutical factory in Zhejiang Province to study the removal of high-concentration H2S from water treatment plant. Experiments were performed at different empty bed residence times (EBRTs), H2S input load, ratio of liqu...

journal_title：Environmental technology

authors： Chen JM,Jiang LY,Sha HL

更新日期：2006-07-01 00:00:00

abstract：:Numerical simulations and experimental validations were conducted to determine grit removal efficiency and separation processes for inorganic suspended solids (ISS) with different particle sizes in a vortex-type grit chamber (Pista). The Euler-Lagrange method was used to simulate solid-liquid two-phase flow; the Unste...

journal_title：Environmental technology

authors： Lu Z,Yu L,Xu X,Ji F,Liu C

更新日期：2018-12-01 00:00:00

abstract：:In this study, peracetic acid (PAA) activated by Fe(II) was proposed to remove diclofenac (DCF) in polluted water. It was found that Fe(II)/PAA system could effectively remove DCF at neutral condition, which has a significant advantage over classical Fenton process. According to the result of scavenging experiment, bo...

journal_title：Environmental technology

authors： Wang Z,Shi H,Wang S,Liu Y,Fu Y

更新日期：2020-04-30 00:00:00

abstract：:A two-stage anaerobic digestion process operated under mesophilic and thermophilic conditions was investigated for the treatment of solid potato waste to determine optimal methane yield, efficiency of operation and process stability. A solid-bed reactor was used for hydrolysis/acidification stage while an upflow anaer...

journal_title：Environmental technology

authors： Parawira W,Murto M,Read JS,Mattiasson B

更新日期：2007-11-01 00:00:00

abstract：:A charge-coupled device camera was used for the optical monitoring of activated sludge flocs and filaments, and the image analysis results were compared with the effluent clarity at a full-scale activated sludge plant during a three-month period. The study included a maintenance stoppage at the wastewater treatment pl...

journal_title：Environmental technology

authors： Koivuranta E,Keskitalo J,Stoor T,Hattuniemi J,Sarén M,Niinimäki J

更新日期：2014-08-01 00:00:00

abstract：:A possible approach for determining soil and groundwater quality criteria for contaminated sites is the comparative risk assessment. Originating from but not limited to Italian interest in a decentralised (regional) implementation of comparative risk assessment, this paper first addresses the proposal of an original m...

journal_title：Environmental technology

authors： Marzocchini M,Tatàno F,Moretti MS,Antinori C,Orilisi S

更新日期：2019-11-01 00:00:00

abstract：:The photocatalytic degradation of many chlorinated organic compounds by semiconductor particles, has been widely recognised as a promising method of water and wastewater treatment process. In the present work the photocatalytic transformation of 2,4-D and MCPA in aqueous solution with 2 g l(-1) suspended TiO2 is demon...

journal_title：Environmental technology

authors： Djebbar K,Zertal A,Sehili T

更新日期：2006-11-01 00:00:00

abstract：:ABSTRACT Glass recycling is a process that faces many obstacles, especially in the closed-loop context. Waste glass separation and transportation can become quite expensive, turning glass collection for remanufacture unfeasible. For this reason, it is important that alternative markets for waste glass are sought. This...

journal_title：Environmental technology

authors： Salzmann RD,Ackerman JN,Cicek N

更新日期：2020-06-18 00:00:00

abstract：:The reductive dechlorination of tetrachloroethene (PCE) and trichloroethene (TCE) catalyzed by vitamin B12 was examined when zero valent metals (ZVMs) were used as bulk electron donors in batch reactors. UV-visible spectra showed that zinc reduces vitamin B12 Co(III) to vitamin B12 Co(I) through B12 Co(II) and iron re...

journal_title：Environmental technology

authors： Kim YH,Carraway ER

更新日期：2002-10-01 00:00:00

abstract：:The persistence of organic pollutants is an important environmental property due to the extended possibility to have an impact of corresponding substances. In many cases, the experimental values of the thousands of contaminants are missing. The object of the study is novel computational modeling for air pollutions. Qu...

journal_title：Environmental technology

authors： Toropova AP,Toropov AA,Lombardo A,Lavado G,Benfenati E

更新日期：2021-01-27 00:00:00

abstract：:Extreme halophilic archaea are thriving and dominant populations within hypersaline environments. Because of the extreme properties of the enzymes of halophilic archaea and similar metabolic abilities to their bacterial counterparts, our interests focus on their potential biotechnological applications. In this study, ...

journal_title：Environmental technology

authors： Ding JY,Lai MC

更新日期：2010-07-01 00:00:00

abstract：:A novel nanocomposite (NC) based on magnetite nanoparticles (Fe3O4-NPs) immobilized on the surface of a cationic exchange polymer, C100, using a modification of the co-precipitation method was developed to obtain magnetic NCs for phosphate removal and recovery from water. High-resolution transmission electron microsco...

journal_title：Environmental technology

authors： Abo Markeb A,Alonso A,Dorado AD,Sánchez A,Font X

更新日期：2016-08-01 00:00:00

abstract：:Nanomaterials and/or contaminants are becoming more common in the developing world, but their effects on interspecific interactions are rarely reported, particularly in aquatic ecosystems. Thus, the present study determined the effects of the novel pollutant nano-fumed silica (NFS) on algal control by a macrophyte via...

journal_title：Environmental technology

authors： Jiang X,Zuo S,Ye L,Hong W

更新日期：2019-02-01 00:00:00

abstract：:Recently, there has been growing concern over the prevalence of Nonylphenol ethoxylates (NPnEOs) in the natural environment as these compounds are known endocrine disruptors. This study focuses on the seasonal variation and spatial distribution of NPnEOs in the wastewater of a full scale sewage treatment plant, operat...

journal_title：Environmental technology

authors： Gao DW,Li Z,Guan JX,Liang H

更新日期：2017-02-01 00:00:00

abstract：:Compost made from municipal solid waste (MSW) contains heavy metals that can interfere with the use of organic amendment in soil. In order to find effective ways to reduce the potential risk of heavy metals, we have investigated a novel approach by use of organic acid during MSW composting. Citric and oxalic acid diss...

journal_title：Environmental technology

authors： Rosal A,Chica AF,Arcos MA,Dios M

更新日期：2012-09-01 00:00:00

abstract：:The destabilization of a microbial population is sometimes hard to solve when different biological reactions are coupled in the same reactor as in sequencing batch reactors (SBRs). This paper will try to guide through practical experiences the recovery of simultaneous nitrogen and phosphorus removal in an SBR after in...

journal_title：Environmental technology

authors： Coma M,Puig S,Monclús H,Balaguer MD,Colprim J

更新日期：2010-03-01 00:00:00