Aerobic granular sludge formation in a sequencing batch reactor treating agro-industrial digestate.

abstract：:The performance of selenium remediation agents, mainly gamma alumina sorbents and zerovalent metals is greatly inhibited in the presence of large concentrations of sulfate found in selenium-rich agricultural drainage water. It is therefore imperative to remove sulfates from these contaminated waters, prior to their tr...

journal_title：Environmental technology

authors： Jegadeesan G,Mondal K,Lalvani SB

更新日期：2005-10-01 00:00:00

abstract：:Trichosporon akiyoshidainum HP2023 is a basidiomycetous yeast isolated from Las Yungas rainforest (Tucumán, Argentina) and selected based on its outstanding textile-dye-decolorizing ability. In this work, the decolorization process was optimized using Reactive Black 5 as dye model. Lactose and urea were chosen as carb...

journal_title：Environmental technology

authors： Martorell MM,Rosales Soro MDM,Pajot HF,de Figueroa LIC

更新日期：2018-12-01 00:00:00

abstract：:The effects of circulation reflux and micro-aeration on the performance of a modified anaerobic baffled reactor (ABR) for treatment of traditional Chinese medicine (TCM) wastewater were evaluated. The characteristics of anaerobic sludge and microbial community structure in the modified ABR were also investigated. The ...

journal_title：Environmental technology

authors： Su C,Deng Q,Lu Y,Pan J,Chen W,Chen S,Deng X,Lin X,Huang Z

更新日期：2020-11-01 00:00:00

abstract：:This work proposed a new approach of reusing drinking water treatment residuals (WTR) in a continuous stirred tank reactor (CSTR) to remove phosphate (P) from urban wastewater. The results revealed that the P removal efficiency of the WTR was more than 94% for urban wastewater, in the condition of initial P concentrat...

journal_title：Environmental technology

authors： Bai L,Wang C,Pei Y,Zhao J

更新日期：2014-11-01 00:00:00

abstract：:Anaerobic ammonium oxidation (ANAMMOX) is an innovative process for the treatment of ammonia-contaminated waters. ANNAMOX is usually preceded by a nitrifying step in which ammonia is partially oxidized to nitrite. The effectiveness of the overall process depends on control of the nitrification and creation of a suitab...

journal_title：Environmental technology

authors： Daalkhaijav U,Nemati M

更新日期：2014-03-01 00:00:00

abstract：:Electromagnetic induction (EMI) has been used to map soil properties such as salinity and water content. The objective of this research is to use EMI to map the potential distribution of nutrients around beef cattle pens and to relate this distribution to major physiographic field features. Beef cattle farms in differ...

journal_title：Environmental technology

authors： Cordeiro MR,Ranjan RS,Cicek N

更新日期：2011-12-01 00:00:00

abstract：:One of the main problems of the Whole Effluent Toxicity is related to the use of bioindicator species representative of the target environment. Most wastewater discharges are of fresh water, so their salinity has to be adjusted when they are discharged to transitional and marine coastal waters, in order to perform tox...

journal_title：Environmental technology

authors： Libralato G,Losso C,Avezzù F,Volpi Ghirardini A

更新日期：2009-01-01 00:00:00

abstract：:Dissimilatory nitrate reduction to ammonium was examined in the bottom sediment of selected reservoirs. In vitro measurements of DNRA rates were made with undisturbed sediment cores, using an 15N stable isotope technique. 15NH4+ analysis was conducted using a C and N Elemental Analyzer, model EA 1112 (ThermoQuest) on ...

journal_title：Environmental technology

authors： Tomaszek JA,Gruca-Rokosz R

更新日期：2007-07-01 00:00:00

abstract：:Although electroosmosis has been confirmed to be a promising technique for stabilizing soil with low permeability and high water content, several issues remain with this innovative method, including high power consumption, nonuniform strengthening effect, and electrode corrosion. In this context, for improving the fea...

journal_title：Environmental technology

authors： Zhang H,Ma Q,Su W,Hu H

更新日期：2021-01-01 00:00:00

abstract：:BiOBr nanosheets and BiOBr flower-like microspheres were prepared by hydrothermal method and solvothermal method, respectively. On this basis, BiOBr nanosheets were modified by reducing agent reduction, preparing successfully Bi/BiOBr nanosheets. The XRD, SEM, UV-VisDRS, XPS and UV-vis spectrophotometry were used to c...

journal_title：Environmental technology

authors： Gao Z,Yao B,Xu T

更新日期：2019-09-30 00:00:00

abstract：:The aim of this study was to contribute to the knowledge on the dynamic of the microbial community involved in anaerobic degradation of different concentrations of 2-chlorophenol (2CP, from 28 to 196 mg 2CP-C/L) and a mixture of 2CP and phenol (from 28 to 196 mg phenol-C/L) and its relationship with the respiratory pr...

journal_title：Environmental technology

authors： Beristain-Montiel L,Martínez-Hernández S,de María Cuervo-López F,Ramírez-Vives F

更新日期：2015-07-01 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：:Biodegradation and bioconversion of lignin are the result of the combined action of fungi, bacteria and actinomycetes. Through screening from forest soil, two novel isolated actinomycete strains were identified as Streptomyces spp. strains F-6 and F-7 by their morphology, cultural characteristics and high homology to ...

journal_title：Environmental technology

authors： Yang YS,Zhou JT,Lu H,Yuan YL,Zhao LH

更新日期：2012-12-01 00:00:00

abstract：:Polyaspartic acid (PSI) is suitable for the inhibition of inorganic scale deposition. To enhance its scale inhibition efficiency, PSI was modified by reacting aspartic acid with malic acid (MA) using thermal polycondensation polymerization. This reaction resulted in poly(aspartic acid-co-malic acid) (PSI-co-MA) dual p...

journal_title：Environmental technology

authors： Mithil Kumar N,Gupta SK,Jagadeesh D,Kanny K,Bux F

更新日期：2015-05-01 00:00:00

abstract：:A lab-scale fluidized bed bioreactor with high-density polyethylene as biofilm carrier media was operated to study partial nitrification (PN) performance with high ammonia concentrations. The system was run at nitrogen loading rates (NLRs) from 1.2 to 4.8 kg N/(m3 d) with empty bed contact time of 2.0 and 2.7 h and fo...

journal_title：Environmental technology

authors： Wang H,Kim M,Li K,Shao Y,Zhu J,Nakhla G

更新日期：2019-01-01 00:00:00

abstract：:Pig manure at three different ratios of 12.5%, 25% and 50% (w/w dry weight basis) was amended with a soil spiked with 100 mg kg(-1) each of three polycyclic aromatic hydrocarbons (phenanthrene, anthracene, and pyrene) to investigate its effect on the biodegradation of these PAHs in a bench-scale composting system. An ...

journal_title：Environmental technology

authors： Wong JW,Wan CK,Fang M

更新日期：2002-01-01 00:00:00

abstract：:Process intensification through the combined use of electrodialysis (ED) and ion-exchange resin (IER) hybrid process, called continuous electropermutation (CEP), was employed to remove Ni(II) cations from water. To carry out this process, Amberjet 1200 H cation-exchange resin was introduced into the feed compartment o...

journal_title：Environmental technology

authors： Gabli M,Smara A,Mecibah W,Djellabi R

更新日期：2020-06-01 00:00:00

abstract：:Heterotrophic Biofilms, growing in the successive three treatment stages of the RBC reactor in a full-scale wastewater treatment plant in the summer of 2002, were investigated and compared to those growing in the fall of 2001. The seasonal changes in biofilm structure were studied in terms of biofilm thickness, dry so...

journal_title：Environmental technology

authors： Shen L,Ganczarczyk J

更新日期：2005-01-01 00:00:00

abstract：:The effects of two seed sludge types, namely conventional activated sludge (CAS) and membrane bioreactor sludge (MBS), on aerobic granulation were investigated. The treatment performances of the reactors were monitored during and after the granulation. Operational period of 37 days was described in three phases; Phase...

journal_title：Environmental technology

authors： Erşan YÇ,Erguder TH

更新日期：2014-11-01 00:00:00

abstract：:Of the various sources of arsenic released in to the environment, the presence of arsenic in water probably poses the greatest threat to human health. Arsenic is released in to the environment through water by dissolution of minerals and ores. Natural release is slow, but in some areas the concentration of arsenic in ...

journal_title：Environmental technology

authors： Pawlak Z,Rauckyte T,Zak S,Praveen P

更新日期：2008-02-01 00:00:00

abstract：:The removal performance of dimethyl sulphide (DMS) by anoxic laboratory-scale bio-scrubber was studied under different operation conditions for 315 days. DMS removal in bio-scrubber system was performed by controlling and changing the operation parameters, including inlet concentration, empty bed residence time (EBRT)...

journal_title：Environmental technology

authors： Mhemid RKS,Alp K,Turker M,Akmirza I,Shihab MS

更新日期：2020-05-01 00:00:00

abstract：:The aim of the present study was to develop structurally stable, nutrient-rich and environmentally safe growing media by combining waste material: crop residue hazelnut husk (HH) and municipal sewage sludge. In order to achieve this goal, lignocellulosic HH residue was mixed with nutrient-rich sewage sludge (S) in var...

journal_title：Environmental technology

authors： Dede OH,Ozdemir S

更新日期：2018-09-01 00:00:00

abstract：:Different pretreatments (electrolysis, centrifugation and autoclaving) coupled with Chlorella vulgaris biological system was used for the treatment of poultry manure anaerobic-digested effluents. The pretreated effluents were used as the growth medium for algal cultivation. The pollutant removal efficiencies of the co...

journal_title：Environmental technology

authors： Wang M,Wu Y,Li B,Dong R,Lu H,Zhou H,Cao W

更新日期：2015-03-01 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：:Compost stability assessment within different particle size fractions was studied. Humic acids (HAs) were extracted from two kinds of co-composts prepared using evaporated olive mill wastewater (OMSW) or solid waste from olive oil extraction (OC) and poultry manure (PM). The elemental composition, Fourier-transform in...

journal_title：Environmental technology

authors： Masmoudi S,Jarboui R,El Feki H,Gea T,Medhioub K,Ammar E

更新日期：2013-03-01 00:00:00

abstract：:This study investigates the changes in biodegradability, rheology and metal concentration of wastewater sludge--non-hydrolyzed (raw), sterilized, and hydrolyzed (thermal alkaline pre-treatment) at total solids concentration from 10-50 g l(-1) to ascertain the bioavailability of nutrients for subsequent fermentation. T...

journal_title：Environmental technology

authors： Verma M,Brar SK,Riopel AR,Tyagi RD,Surampalli RY

更新日期：2007-03-01 00:00:00

abstract：:Cell agglomeration studies were conducted in anaerobic fluidized bed reactors without any external support. Granulation was studied at different combinations of loading and mixing conditions utilizing synthetic wastewater. Both single-stage and two-stage biomethanation processes were studied. Reactors of volume 0.55, ...

journal_title：Environmental technology

authors： Verma M,Sreekrishnan TR,Tyagi RD

更新日期：2005-07-01 00:00:00

abstract：:The study presented here aims at identifying the source of redox mediators (riboflavin), electron carriers nicotinamide adenine dinucleotide (NAD) and carbon to perform decolorization of azo dye under anaerobic conditions after osmotic shock pretreatment of residual yeast from industrial fermentation. Pretreatment con...

journal_title：Environmental technology

authors： Victral DM,Dias HR,Silva SQ,Baeta BE,Aquino SF

更新日期：2017-02-01 00:00:00

abstract：:In this paper, the recycling of incinerated sewage sludge ash (ISSA) into glass-ceramic materials by a two-stage sintering cycle of nucleation stage and crystallization stage without any pressure and binder is presented. The parent glasses were subjected to the following nucleation/crystallization temperature and time...

journal_title：Environmental technology

authors： Zhang Z,Zhang L,Yin Y,Liang X,Li A

更新日期：2015-05-01 00:00:00

abstract：:Landfill leachate is posing an ever-greater environmental hazard. Recently, a process for purification combining activated carbon, microwave (MW) and Fenton oxidation has drawn much attention. In this study, the effectiveness of this process for the pretreatment of an old-age landfill leachate was tested. The effects ...

journal_title：Environmental technology

authors： Xu XC,Zhang HT,Dong ZY,Fan YF

更新日期：2013-09-01 00:00:00