Effect of ultrasound on oil recovery from crude oil containing sludge.

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：:The main aim of this work is to test the performance of red mud as a permeable reactive barrier (PRB) material for fluoride removal from water. Batch experiments were carried out to optimise the fluoride removal efficiency (RE) of activated red mud (ARM) based on four selected parameters, namely, the initial fluoride ...

journal_title：Environmental technology

authors： Vinati A,Rene ER,Pakshirajan K,Behera SK

更新日期：2020-11-01 00:00:00

abstract：:A mathematical model to simulate the biological processes occurring in a membrane bioreactor (MBR) is presented. The model accounts for different MBR technical features by introducing specific permeability parameters for the applied membrane system. The model considers for the heterotrophic storage process and the for...

journal_title：Environmental technology

authors： Tenore A,Vieira J,Frunzo L,Luongo V,Fabbricino M

更新日期：2020-06-01 00:00:00

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：:This work focused in the evaluation of Oreochromis niloticus fish scales (FS) as biosorbent material in the removal of Zn from a synthetic effluent based on automotive battery industry effluent and, further, a hybrid neutralization/biosorption process, aiming at a high-quality treated effluent, by a cooperative use of...

journal_title：Environmental technology

authors： Ribeiro C,Scheufele FB,Alves HJ,Kroumov AD,Espinoza-Quiñones FR,Módenes AN,Borba CE

更新日期：2019-07-01 00:00:00

abstract：:The discharge of raw wastewater into the environment can be a contamination source of Giardia spp. cysts and Cryptosporidium spp. oocysts. The UASB (Upflow Anaerobic Sludge Blanket) reactor is the most popular technology applied for wastewater treatment in Brazil, nevertheless there is little information concerning it...

journal_title：Environmental technology

authors： Valdez FQ,Leite LS,Zanetoni Filho JA,Tango MD,Daniel LA

更新日期：2021-01-07 00:00:00

abstract：:The aim of the study was to determine the biogas productivity from selected cultivars of sorghum (Sorghum bicolor Moench) and maize (Zea mays L.) depending on the dose of mineral fertilization with nitrogen. The topic is novelty in the northern Poland area due to the fact that this crop is not very widespread here. Th...

journal_title：Environmental technology

authors： Kuglarz K,Bury M,Kasprzycka A,Lalak-Kańczugowska J

更新日期：2020-09-01 00:00:00

abstract：:The alternate multiple tanks (AMT) system was a new highly compact sewage treatment with cost-effective balance and automated management. Dissolved oxygen (DO) and oxidation-reduction potential (ORP) as monitoring indicators are closely linked to contaminants and controlling strategy. Thus, this paper was to investiga...

journal_title：Environmental technology

authors： Dai Z,Lu X,Jing Z

更新日期：2019-01-01 00:00:00

abstract：:A highly sensitive and selective optical chemosensor (Arg-Rhoen) for determination of Au3+ was prepared by covalent immobilization of rhodamine ethylenediamine on agarose gel. Spectrophotometric studies of complex formation, chemical structures and purity of the hydrogel sensor were carried out using TGA, NMR, TEM, an...

journal_title：Environmental technology

authors： Kaewtong C,Wanich S,Wanno B,Tuntulani T,Pulpoka B

更新日期：2020-12-07 00:00:00

abstract：:This study describes a method to formulate struvite fine powder into pellets that are easy to spread on agricultural land. To evaluate the quality of produced pellets, some chemical and physical properties commonly measured for fertilizers were tested. The findings indicated that the salt index and heavy metal content...

journal_title：Environmental technology

authors： Latifian M,Liu J,Mattiasson B

更新日期：2012-12-01 00:00:00

abstract：:A two-stage biological aerated/anoxic filter (BAF) system for denitrification-nitrification was developed to increase nitrogen removal in the treatment of municipal wastewater with low carbon:nitrogen (C/N) ratio [Formula: see text]. This system exhibited a high denitrification efficiency (67%), despite the low C/N ra...

journal_title：Environmental technology

authors： Kim S,Bae W,Kim M,Kim JO,Chung J

更新日期：2015-03-01 00:00:00

abstract：:The paper mainly focused on illustrating the merit of respirometric analysis in assessing the inhibitory/toxic impact of xenobiotics on substrate biodegradation. It also evaluated biodegradation characteristics of these chemicals at continuous exposure through acclimation ofthe microbial culture. The nature and role o...

journal_title：Environmental technology

authors： Orhon D,Sözen S

更新日期：2012-07-01 00:00:00

abstract：:Fluoxetine is a selective serotonin reuptake inhibitor (SSRI) widely used in the treatment of major depression. It has been detected in surface and wastewaters, being able to negatively affect aquatic organisms. Most of the ecotoxicity studies focused only in pharmaceuticals, though excipients can also pose a risk to ...

journal_title：Environmental technology

authors： Silva A,Santos LH,Delerue-Matos C,Figueiredo SA

更新日期：2014-11-01 00:00:00

abstract：:Sample pretreatment process is usually performed before real sample detection. Extraction is one of the most prevalent pretreatment methods. Due to the unequal solubility in two liquid phases, target is extracted (usually from water to organic phase) and further detected with laboratory instruments. Although the analy...

journal_title：Environmental technology

authors： Zhang D,Wang Y,Li C,Zhang X

更新日期：2019-10-29 00:00:00

abstract：:This study is focused on the concentration of fermented broth from Phoma sp. to increase its herbicidal activity. For this purpose, biomolecules produced by submerged fermentation using Phoma sp. were concentrated by hollow fiber microfiltration membranes. The membrane feed was separated into two streams (retentate an...

journal_title：Environmental technology

authors： Todero I,Confortin TC,Soares JF,Brun T,Luft L,Rabuske JE,Kuhn RC,Tres MV,Zabot GL,Mazutti MA

更新日期：2019-07-01 00:00:00

abstract：:Incinerators do not achieve a complete mineralization of organic constituents of municipal solid waste. Bottom ash (main solid residue from incineration process) still contains a small quantity of carbon (1 to 5% in weight). This study is about characterisation of the carboned fraction (without carbonates) present in ...

journal_title：Environmental technology

authors： Quilici L,Praud-Tabaries A,Bottzeck O,Tiliacos N

更新日期：2003-08-01 00:00:00

abstract：:The effect of the addition of trace elements on the conversion of a mixture of volatile fatty adds (Acetate, Propionate, Butyrate, in a ratio 3:1:1) by anaerobic granular sludge was investiated. Two Upflow Anaerobic Sludge Bed reactors (pH 7, ranging 30 degrees C) were operated for 140 days at an organic loading rate ...

journal_title：Environmental technology

authors： Osuna MB,Zandvoort MH,Iza JM,Lettinga G,Lens PN

更新日期：2003-05-01 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：:Normalizations by TSS or P-PO43- initial concentrations are consistent as they are correlated to the Jar-test performances. Jar-tests results are independent of the wastewater quality variations in terms of TSS and P-PO43- and independent of the WWTP origin of the water. A notable variability in the TSS results indica...

journal_title：Environmental technology

authors： Mailler R,Mèche P,Sauvignet P,Azimi S,Rocher V

更新日期：2020-06-01 00:00:00

abstract：:Completely autotrophic nitrogen removal over nitrite (CANON) process was an innovative technology for nitrogen removal from wastewater. It is necessary to clear the impact of CuO nanoparticles (CuO NPs) on CANON process since the widespread utilize increased their opportunity for entering into wastewater. In this stud...

journal_title：Environmental technology

authors： Zhang X,Zhou Y,Zhang N,Zhao S,Zhang H,Zhai H,Zhang J

更新日期：2018-10-01 00:00:00

abstract：:A method of chemically bonding copper ferrocynide (CuFC) to the surface of a PVDF hollow-fibre membrane (PVDF-CuFC) was designed and the resulting PVDF-CuFC was applied to the effective removal of aqueous cesium (Cs). In order to chemically immobilize CuFC on the surface of the PVDF hollow-fibre membrane, carboxyl gro...

journal_title：Environmental technology

authors： Lee HK,Choi SJ

更新日期：2021-01-28 00:00:00

abstract：:Previous research has shown that dosing polymers directly to the saturator of a dissolved air flotation (DAF) process in replacement of upstream coagulation can achieve algae removal comparable to that of conventional treatment, as a result of bubble modification. In this paper we further explore the application of po...

journal_title：Environmental technology

authors： Henderson RK,Parsons SA,Jefferson B

更新日期：2010-06-01 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：:The capacity of three inocula (sewer biofilm, mangrove and estuary sediment) to utilise typical fermentation products of municipal solid waste for biological sulfate reduction was investigated. Each inoculum was used in two reactors, one fed a mixture of volatile fatty acids and another fed glucose to provide a suite ...

journal_title：Environmental technology

authors： Patel M,Villa Gómez DK,Pikaar I,Clarke WP

更新日期：2020-06-22 00:00:00

abstract：:Removal of heavy metals (Cu(II), Pb(II) and Zn(II)) from aqueous solution was investigated using native or saponified chicory pulp biomass. Firstly, carbohydrates constituted about 70% of pulp dried matter. The pectic fraction represented 12-14% of dried matter and about 51% of these pectic units were esterified by me...

journal_title：Environmental technology

authors： Rio S,Martin P

更新日期：2012-10-01 00:00:00

abstract：:An integrated OCO reactor with two side-ditch separators based on the anaerobic/anoxic/oxic (A2/O) process was developed for municipal wastewater treatment in this study. The effects of dissolved oxygen (DO) concentration, hydraulic retention time (HRT) and the ratio of chemical oxygen demand (COD) to total nitrogen (...

journal_title：Environmental technology

authors： Li D,Mao Y,Liu Z,Yin X,Lang C,Liu Y

更新日期：2014-09-01 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：: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：:Amino acids are at the origin of the formation of odourous compounds after chlorination treatment. Our objectives were to test the efficiency of a photocatalytic process to remove these types of compounds. Five amino acids (AA)-phenylalanine, tyrosine, tryptophan, glycine and alanine--have been chosen as model molecul...

journal_title：Environmental technology

authors： Elsellamia L,Pigeot-Rémy S,Dappozze F,Vocanson F,Houas A,Guillard C

更新日期：2010-12-01 00:00:00