[Groundwater quality in an arid area of Morocco: impact of pollution on the biodiversity and relationships between crustaceans and bacteria of health interest].


:In the north of Marrakesh (Morocco), the high anthropogenic activity and the permeable nature of the geological ground makes the water of Jbilet vulnerable to contamination. The results of physico-chemical analyses conducted in 2006 showed that two groups of wells could be distinguished. Groundwater of wells located on the right bank of the Tensift River, which are far from any source of pollution, is of fairly good quality, well oxygenated, at neutral pH and with rather weak levels of organic compounds. In contrast, in the other wells in the area of the landfill of the city of Marrakesh and those in the peri-urban area demonstrate deteriorated water quality. The nutriment and organic matter content is quite high. Results of bacteriological analyses of water showed a fairly high faecal contamination. In this area the soil is highly permeable and promotes infiltration of organic pollutants and minerals as well as of pathogen and opportunistic bacteria into groundwater. After their penetration, these microorganisms form films around grain particles. The movements of the stygofauna in the interstices allow bacteria to settle on their exoskeleton and seep into their gut, thus being a potential source of groundwater contamination. An analysis of bacterial flora showed that the rate of bacteria is high in the digestive tract of two crustacean species of the stygobites Typhlocirolana haouzensis and Metacrangonyx spinicaudatus, and that it depends on the species and the bacteria. Bacteria may be one of the potential nutritional resources for stygobites.


Environ Technol


Environmental technology


Hallam F,Yacoubi-Khebiza M,Oufdou K,Boulanouar M




Has Abstract


2008-11-01 00:00:00












  • [Treatment of tannery wastewater by infiltration percolation: chromium removal and speciation in soil].

    abstract::The aim of this paper was, on one hand, to study the treatment of raw tannery effluent by infiltration percolation system and, on the other hand, to determine the distribution and speciation of chromium in the used soil. The system pilot consisted of columns filled to 15 cm of gravel and 60 cm of soil (88% of sand). T...

    journal_title:Environmental technology

    pub_type: 杂志文章


    authors: Tiglyene S,Jaouad A,Mandi L

    更新日期:2008-06-01 00:00:00

  • Analysis of up-flow aerated biological activated carbon filter technology in drinking water treatment.

    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

    pub_type: 杂志文章


    authors: Lu S,Liu J,Li S,Biney E

    更新日期:2013-07-01 00:00:00

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

    abstract::To recover oil from crude oil containing sludge is still a research hot topic from the view of sustainability, in which ultrasonic has been proven to be an efficient and environment friendly technique. However, the effect of sludge characteristic on ultrasonic-assisted oil recovery efficiency is little known. In this ...

    journal_title:Environmental technology

    pub_type: 杂志文章


    authors: He S,Tan X,Hu X,Gao Y

    更新日期:2019-04-01 00:00:00

  • LCA of an ice cream cup of polyethylene coated paper: how does the choice of the end-of-life affect the results?

    abstract::This study presents an evaluation of the environmental performance of an ice cream cup made of polyethylene (PE)/paper laminate using a life cycle assessment approach 'from cradle to grave'. Two opposite alternative disposal scenarios, as well as their intermediate combinations, were considered: 100% incineration and ...

    journal_title:Environmental technology

    pub_type: 杂志文章


    authors: Buccino C,Ferrara C,Malvano C,De Feo G

    更新日期:2019-02-01 00:00:00

  • Biodegradation of phenol and benzene by endophytic bacterial strains isolated from refinery wastewater-fed Cannabis sativa.

    abstract::The presence of benzene and phenol in the environment can lead to serious health effects in humans and warrant development of efficient cleanup strategies. The aim of the present work was to assess the potential of indigenous endophytic bacterial strains to degrade benzene and phenol. Seven strains were successfully i...

    journal_title:Environmental technology

    pub_type: 杂志文章


    authors: Iqbal A,Arshad M,Hashmi I,Karthikeyan R,Gentry TJ,Schwab AP

    更新日期:2018-07-01 00:00:00

  • Comparative performance of air-lift partial nitritation processes with attached growth and suspended growth without biomass retention.

    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

    pub_type: 杂志文章


    authors: Choi J,Ahn Y

    更新日期:2014-05-01 00:00:00

  • Comparative study on turbulence models simulating inorganic particle removal in a Pista grit chamber.

    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

    pub_type: 杂志文章


    authors: Lu Z,Yu L,Xu X,Ji F,Liu C

    更新日期:2018-12-01 00:00:00

  • Development and application of the compression frictional treatment method for sterilizing and valorizing organic waste.

    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

    pub_type: 杂志文章


    authors: Talley A,Heimann R,Vakalis S

    更新日期:2018-07-01 00:00:00

  • Mesophilic co-digestion of palm oil mill effluent and empty fruit bunches.

    abstract::The palm oil mill industry generates palm oil mill effluent (POME) and empty fruit bunches (EFB) as by-products. This study reports the mesophilic co-digestion of POME with EFB. The biochemical methane potential (BMP) of POME and EFB was 0.397 L CH4/g volatile solids (VS) and 0.264 L CH4/g VS, respectively. In a serie...

    journal_title:Environmental technology

    pub_type: 杂志文章


    authors: Kim SH,Choi SM,Ju HJ,Jung JY

    更新日期:2013-07-01 00:00:00

  • Removal of fluoride in aqueous medium under the optimum conditions through intracellular accumulation in Bacillus flexus (PN4).

    abstract::The removal of fluoride is essential for water contaminated with fluoride before being utilized since the unsafe concentration of fluoride with respect to the permissible limits. In the present study, there are 61 bacterial strains belonging to fluoride tolerance were isolated from the contaminated soil of Dharmapuri ...

    journal_title:Environmental technology

    pub_type: 杂志文章


    authors: Sakthi Thesai A,Rajakumar S,Ayyasamy PM

    更新日期:2020-04-01 00:00:00

  • Oxidation of sulphide in abandoned mine tailings by ferrate.

    abstract::In this study, Fe(VI) was applied to treat three mine tailings containing different amounts of sulphides and heavy metals. Oxidation of sulphides by Fe(VI) was studied at pH 9.2 with variation of solid to solution ratio, Fe(VI) concentration and injection number of Fe(VI) solution. The major dissolved products from th...

    journal_title:Environmental technology

    pub_type: 杂志文章


    authors: Lee YH,Yu MR,Chang YY,Kang SH,Yang JK

    更新日期:2015-01-01 00:00:00

  • Mechanistic investigations on the removal of diclofenac sodium by UV/S2O8 2-/Fe2+, UV/HSO5 -/Fe2+ and UV/H2O2/Fe2+-based advanced oxidation processes.

    abstract::This study reports the comparative removal of an emerging contaminant diclofenac sodium (DCF) by UV-254 nm-based advanced oxidation processes (AOPs), i.e. UV/S2O82-/Fe2+, UV/HSO5-/Fe2+ and UV/H2O2/Fe2+ processes. The results demonstrated that by applying [DCF]0 = 0.30 mM and [H2O2]0 = [S2O82-]0 = [HSO5-]0 = 3 mM, kapp...

    journal_title:Environmental technology

    pub_type: 杂志文章


    authors: Rehman F,Ahmad W,Sayed M

    更新日期:2020-05-28 00:00:00

  • Experimental investigation on consistency limits of cement and lime-stabilized marine sediments.

    abstract::This paper presents the effects of treatments with cement and lime on the consistency limits of marine sediments dredged from Dunkirk port. The Casagrande percussion test and the fall cone test were used to determine the liquid limits of raw sediments and treated marine sediments. For the evaluation of the plastic lim...

    journal_title:Environmental technology

    pub_type: 杂志文章


    authors: Wang D,Zentar R,Abriak NE,Xu W

    更新日期:2012-06-01 00:00:00

  • Reactive sorption of mercury(II) on to poly(m-phenylenediamine) microparticles.

    abstract::Poly(m-phenylenediamine) (PmPD) microparticles, from the monomer with two amino groups, were synthesized through chemical oxidation, and the strong adsorbability of mercury ions on to PmPD was systematically examined. The results revealed a rapid adsorption process with an equilibrium time of 30 minutes. Also, the ads...

    journal_title:Environmental technology

    pub_type: 杂志文章


    authors: Tang R,Li Q,Ding L,Cui H,Zhai J

    更新日期:2012-01-01 00:00:00

  • Hydrocarbon degradation by a new Pseudomonas sp., strain RW-II, with polycationic surfactant to modify the cell hydrophobicity.

    abstract::Pseudomonas putida RW-II isolated from petroleum refinery wastewater was tested for hydrocarbon degradation potential in the presence of polycationic surfactant, cetyl trimethylammonium bromide (CTAB). The effects of CTAB on growth profile, cell surface hydrophobicity, cell adhesion, zeta potential and hydrocarbon bio...

    journal_title:Environmental technology

    pub_type: 杂志文章


    authors: Yalçin E,Cavuşoğlu K,Ozen E

    更新日期:2011-12-01 00:00:00

  • Antioxidant enzymes responses in shoots of arsenic hyperaccumulator, Isatis cappadocica Desv., under interaction of arsenate and phosphate.

    abstract::The present study investigated the effects of arsenate and phosphate interaction on growth, lipid peroxidation, arsenic (As) accumulation, phosphorus (P) accumulation, and the activities of some antioxidant enzymes in Isatis cappadocica. Plants were exposed to (50-1200 μmol L-1) arsenate and (5-1600 μmol L-1) phosphat...

    journal_title:Environmental technology

    pub_type: 杂志文章


    authors: Souri Z,Karimi N,de Oliveira LM

    更新日期:2018-05-01 00:00:00

  • Secondary hospital wastewater detoxification and disinfection by advanced oxidation processes.

    abstract::Secondary hospital wastewater treatment was investigated as an alternative to detoxification and disinfection after anaerobic digestion in a hospital located in southern Brazil. Tertiary and secondary effluents were assessed by general parameters. The use of advanced oxidation processes (UV/O3 and UV/TiO2/O3) showed p...

    journal_title:Environmental technology

    pub_type: 杂志文章


    authors: Machado EL,Kist LT,Schmidt R,Hoeltz JM,Dalberto D,Alcayaga EL

    更新日期:2007-10-01 00:00:00

  • Enhanced coagulation by two-stage alum addition: the role of solution pH, floc breakage and assistant of non-ionic polyacrylamide.

    abstract::Coagulation process is highly influenced by solution pH, floc breakage, and coagulant aid. In this work, two-stage addition of alum-based coagulants, polyaluminum chloride (PACl) and aluminum sulfate (Al2(SO4)3), was compared to their one-stage addition with the same total dosage. The dose ratio of primary and seconda...

    journal_title:Environmental technology

    pub_type: 杂志文章


    authors: Du P,Li X,Yang Y,Fan X,Fang X,Zhou Z

    更新日期:2020-05-19 00:00:00

  • Property of filler-loaded magnetic ferrite from plastic waste bottle used to treat municipal domestic sewage.

    abstract::The present work investigates the properties of self-made magnetic filler from plastic waste bottle and explores a new technology approach of waste plastic resource utilization. The magnetic filler was prepared by air plasma modification and loading magnetic ferrite on the plastic strip from waste plastic bottle. The ...

    journal_title:Environmental technology

    pub_type: 杂志文章


    authors: Zhao RJ,Gong LY,Zhu HD,Liu Q,Xu LX,Lu L,Yang QZ

    更新日期:2018-06-01 00:00:00

  • Surface rearrangement of nanoscale zerovalent iron: the role of pH and its implications in the kinetics of arsenate sorption.

    abstract::We consider the use of metallic iron nanoparticles for cleaning contaminated water, focusing our study in the sorption of arsenic compounds. In particular, we discuss the results of their sorption process on the surface of zerovalent iron nanoparticles (nZVI) by performing a complete characterization of the surface mo...

    journal_title:Environmental technology

    pub_type: 杂志文章


    authors: Baltazar SE,García A,Romero AH,Rubio MA,Arancibia-Miranda N,Altbir D

    更新日期:2014-09-01 00:00:00

  • Effects of domestic wastewater toxicity on anaerobic membrane-bioreactor (MBR) performances.

    abstract::An anaerobic membrane bioreactor (MBR) was operated for 367 days to treat domestic wastewater originating from the Sfax wastewater treatment plant. The results showed that the MBR was not very efficient because of the considerable fluctuations in the domestic wastewater composition and the presence of toxic compounds ...

    journal_title:Environmental technology

    pub_type: 杂志文章


    authors: Saddoud A,Abdelkafi S,Sayadi S

    更新日期:2009-12-01 00:00:00

  • Microalgae-activated sludge treatment of molasses wastewater in sequencing batch photo-bioreactor.

    abstract::The aim of this work was the examination of the treatment potential of molasses wastewater, by the utilization of activated sludge and microalgae. The systems used included a sequencing batch bioreactor and a similar photo-bioreactor, favoring microalgae growth. The microalgae treatment of molasses wastewater mixture ...

    journal_title:Environmental technology

    pub_type: 杂志文章


    authors: Tsioptsias C,Lionta G,Samaras P

    更新日期:2017-05-01 00:00:00

  • Chlorination and monochloramination of 3-aminophenol: kinetics and formation of first by-products.

    abstract::Aminophenols (AP) are synthetic intermediates in pharmaceutical, photographic and chemical dye industry. They can be released into the environment from wastewater and can react during water treatment processes. Therefore, it was interesting to study the oxidation of AP with chlorine and monochloramine in aqueous solut...

    journal_title:Environmental technology

    pub_type: 杂志文章


    authors: Abou Mehrez O,Dossier-Berne F,Legube B

    更新日期:2015-01-01 00:00:00

  • Facile synthesis of silver nanoparticles in a crosslinked polymeric system by in situ reduction method for catalytic reduction of 4-nitroaniline.

    abstract::In this study, poly(N-isopropylmethacrylamide-co-methacrylic acid) microgels prepared by free radical precipitation polymerization were used as micro-reactors for the synthesis and stabilization of silver nanoparticles. UV-Visible spectroscopy, Transmission Electron Microscopy and Fourier-transform infrared spectrosco...

    journal_title:Environmental technology

    pub_type: 杂志文章


    authors: Farooqi ZH,Khalid R,Begum R,Farooq U,Wu Q,Wu W,Ajmal M,Irfan A,Naseem K

    更新日期:2019-06-01 00:00:00

  • Optimization of the methodology for lead extraction from waste contaminated with heavy metals.

    abstract::A sequential experimental design strategy is used to optimize the extraction of lead from slag. The slag is composed mainly of iron (= 60%) and lead (= 6%), and cannot be disposed of in conventional landfill due to its high lead content. The extraction of lead is based on the complexing properties of ethylenediaminete...

    journal_title:Environmental technology

    pub_type: 杂志文章


    authors: Smaniotto A,Antunes A,Nascimento Filho ID,Venquiaruto LD,De Oliveira D,Mossi A,Di Luccio M,Treichel H,Dallago R

    更新日期:2010-04-01 00:00:00

  • Magnetic nanoadsorbents with amino-functionalized polymers for magnetic separation removal of copper ion.

    abstract::The adsorption of copper ions on magnetic adsorbents with amino-functionalized polymers (DETA/SiO2/Fe3O4) has been investigated. In addition, the structure and characterization of magnetic nano-adsorbents were confirmed using FTIR, TGA, TEM, VSM, and BET. The results showed that DETA/SiO2/Fe3O4 exhibited a paramagneti...

    journal_title:Environmental technology

    pub_type: 杂志文章


    authors: Chen HW,Chang SH

    更新日期:2020-08-13 00:00:00

  • Effect of intermittent aeration strategies on treatment performance and microbial community of an IFAS reactor treating municipal waste water.

    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

    pub_type: 杂志文章


    authors: Singh NK,Bhatia A,Kazmi AA

    更新日期:2017-11-01 00:00:00

  • Biodegradation of C5+ hydrocarbons by a mixed bacterial consortium from a C(5+)-contaminated site.

    abstract::C5+, a mixture of benzene, toluene, xylene, styrene, dicyclopentadiene (DCPD), naphthalene and other compounds, is a byproduct of polyethylene production and has been introduced into the environment via accidental release. The degradation of C5+ was studied using a defined consortium of 11 distinct bacterial strains i...

    journal_title:Environmental technology

    pub_type: 杂志文章


    authors: Greene EA,Voordouw G

    更新日期:2004-03-01 00:00:00

  • Adsorptive removal of aniline by granular activated carbon from aqueous solutions with catechol and resorcinol.

    abstract::In the present paper, the removal of aniline by adsorption process onto granular activated carbon (GAC) is reported from aqueous solutions containing catechol and resorcinol separately. The Taguchi experimental design was applied to study the effect of such parameters as the initial component concentrations (C(0,i)) o...

    journal_title:Environmental technology

    pub_type: 杂志文章


    authors: Suresh S,Srivastava VC,Mishrab IM

    更新日期:2012-04-01 00:00:00

  • High removal of chemical and biochemical oxygen demand from tequila vinasses by using physicochemical and biological methods.

    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

    pub_type: 杂志文章


    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