CLEAN – Soil, Air, Water

Cover image for CLEAN – Soil, Air, Water

July 2011

Volume 39, Issue 7

Pages 597–704

  1. Research Articles

    1. Top of page
    2. Research Articles
    3. Review
    4. Research Articles
    5. Research Article
    1. Investigating Correlations and Variations of Air Pollutant Concentrations under Conditions of Rapid Industrialization – Kocaeli (1987–2009) (pages 597–604)

      Şenay Çetin Doğruparmak and Bilge Özbay

      Article first published online: 8 JUN 2011 | DOI: 10.1002/clen.201000478

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      In this study it was aimed to characterize temporal variations of air pollutants for determining contribution to pollution episodes and to obtain correlations between these pollutants. The methodology of this study is expected to be useful for future air pollution control applications in industrialized areas.

    2. The Positive Effects of Nanoclay on the Hydraulic Conductivity of Compacted Kahrizak Clay Permeated With Landfill Leachate (pages 605–611)

      Negin Kananizadeh, Taghi Ebadi, Seyed Alireza Khoshniat and Seyed Ehsan Mousavirizi

      Article first published online: 30 JUN 2011 | DOI: 10.1002/clen.201000298

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      Nanoclay application in reducing soil permeability shows that increasing nanoclay content causes a slight decrease in the plastic limit whereas the liquid limit and plasticity index slightly increase. At 4% nanoclay, the type of soil in composite samples changes from high plastic silt to high plastic clay.

    3. Assessment of Heavy Metal Contamination of Wetland Soils from a Typical Aquatic–Terrestrial Ecotone in Haihe River Basin, North China (pages 612–618)

      Rong Xiao, Junhong Bai, Qinggai Wang, Haifeng Gao, Laibin Huang and Xinhui Liu

      Article first published online: 30 JUN 2011 | DOI: 10.1002/clen.201000255

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      The results show that concentrations of heavy metals in the surface soils along the aquatic–terrestrial ecotone of Yongnianwa wetland decreased logarithmically from upland to lowland, showing the contamination and toxicity basically fall from median or slight-effective levels to non-effective levels as it reached to water edge of the stream.

    4. Spatial Variability of Surface Soil Moisture in a Depression Area of Karst Region (pages 619–625)

      Jiguang Zhang, Hongsong Chen, Yirong Su, Yi Shi, Wei Zhang and Xiangli Kong

      Article first published online: 7 JUN 2011 | DOI: 10.1002/clen.201000528

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      The variation and patterns of soil moisture content at depth of 0–16cm were characterized and their influencing factors in a karst depression area of southwest China were investigated. The influencing factors as rainfall and land use types and in addition, altitude, bare-rock ratio, and soil organic carbon provided insights for the study on eco-hydrological processes of vegetation restoration.

    5. Effects of Fenton Pre-Treatment on Waste Activated Sludge Properties (pages 626–632)

      Gulbin Erden and Ayse Filibeli

      Article first published online: 16 JUN 2011 | DOI: 10.1002/clen.201000199

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      This paper presents that the Fenton pre-treatment enhances the filterability of sludge and that the process can be applied for conditioning purposes before mechanical dewatering units.

    6. Cr(VI) Immobilization Process in a Cr-Spiked Soil by Zerovalent Iron Nanoparticles: Optimization Using Response Surface Methodology (pages 633–640)

      Leila Alidokht, Ali Reza Khataee, Adel Reyhanitabar and Shahin Oustan

      Article first published online: 24 JUN 2011 | DOI: 10.1002/clen.201000461

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      A five-level central composite design selected as a response surface methodology was employed to optimize the effect of influencing factors in the Cr(VI) immobilization process: zerovalent iron nanoparticles dosage, reaction time, and initial Cr(VI) concentration in soil. The results indicated that CCD could efficiently be applied for the modeling of reductive immobilization of Cr(VI).

  2. Review

    1. Top of page
    2. Research Articles
    3. Review
    4. Research Articles
    5. Research Article
    1. Application of Agro-Based Biomasses for Zinc Removal from Wastewater – A Review (pages 641–652)

      Jitendra Kumar, Chandrajit Balomajumder and Prejit Mondal

      Article first published online: 30 JUN 2011 | DOI: 10.1002/clen.201000100

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      The purpose of this review article is to provide the scattered available information on various aspects of utilization of the agro based biomasses for zinc metal ions removal. An extensive table summarizes the sorption capacities of various adsorbents which can be modified.

  3. Research Articles

    1. Top of page
    2. Research Articles
    3. Review
    4. Research Articles
    5. Research Article
    1. Strategies for Successful ANAMMOX Enrichment at Laboratory Scale (pages 653–657)

      Sinan Uyanik, Ozan K. Bekmezci and Adem Yurtsever

      Article first published online: 30 JUN 2011 | DOI: 10.1002/clen.201000591

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      Anaerobic ammonium oxidation (ANAMMOX) reactors have advantages over traditional nitrification–denitrification systems. A guide for starting up ANAMMOX reactors will enhance the use of this technology. Three trials, each has three reactors, have been carried.

    2. Removal of Cu2+ and Pb2+ Ions Using CMC Based Thermoresponsive Nanocomposite Hydrogel (pages 658–664)

      Bengi Özkahraman, Işıl Acar and Serkan Emik

      Article first published online: 30 JUN 2011 | DOI: 10.1002/clen.201000553

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      A carboxymethylcellulose-g-poly(NIPAm-co-AA)/MMT hydrogel was synthesized and the potential use as a Cu2+ and Pb2+ adsorbent from aqueous solutions was studied. It could be shown that both hydrogels adsorb relatively high amounts of metal ions in 48h and the presence of MMT in the hydrogel nanocomposite causes a slight increase in the sorption capacity compared to the pure hydrogel.

    3. Dye Removal, Energy Consumption and Operating Cost of Electrocoagulation of Textile Wastewater as a Clean Process (pages 665–672)

      Arash Dalvand, Mitra Gholami, Ahmad Joneidi and Niyaz Mohammad Mahmoodi

      Article first published online: 24 JUN 2011 | DOI: 10.1002/clen.201000233

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      The efficiency of the electrocoagulation treatment using aluminum electrodes to remove Reactive Red198 from aqueous solution has been investigated. It could be shown that electrocoagulation is a fast and effective process to remove reactive dyes from wastewater.

    4. Dye Removal from Colored Textile Wastewater by Poly(propylene imine) Dendrimer: Operational Parameters and Isotherm Studies (pages 673–679)

      Bagher Hayati, Niyaz Mohammad Mahmoodi, Mokhtar Arami and Firoozmehr Mazaheri

      Article first published online: 24 JUN 2011 | DOI: 10.1002/clen.201000182

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      Poly(propylene imine) dendrimer (PPI) was used to remove dyes as DR80, AG25, AB7, and DR23. The results show that PPI dendrimer (G2) has a very effective adsorption capacity for the removal of DR80, AG25, AB7, and DR23 from aqueous solutions. Based on these data, one could conclude that the dendrimer is an environmentally friendly adsorbent for dye removal from colored textile wastewater.

    5. Biosorption of Cd(II) and Zn(II) by Nostoc commune: Isotherm and Kinetics Studies (pages 680–687)

      Fatthy M. Morsy, Sedky H. A. Hassan and Mostafa Koutb

      Article first published online: 7 JUL 2011 | DOI: 10.1002/clen.201000312

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      This study shows that the dried biomass of N. commune could be used as an effective and low cost biosorbent for cadmium and zinc ions removal. The biosorption processes are strongly affected by parameters as initial concentration, pH, and contact time and the biosorption kinetic data fitted well with the pseudo-second-order kinetic model.

  4. Research Article

    1. Top of page
    2. Research Articles
    3. Review
    4. Research Articles
    5. Research Article
    1. Multi-Criteria Analysis for Optimization of Sodium Chromate Production from Chromic Waste (pages 688–696)

      Agnieszka Generowicz, Zygmunt Kowalski, Joanna Kulczycka and Agnieszka Makara

      Article first published online: 24 MAY 2011 | DOI: 10.1002/clen.201000203

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      The paper presents comparative environmental, technical, and economical assessment of the sodium chromate production variants with technological quality method and multi-criteria analysis.The used methods ensure the possibility of a quantitative, multilevel, and objective evaluation of proposed alternatives of technological process.

    2. Evaluation of Co-Digestion at a Commercial Dairy Anaerobic Digester (pages 697–704)

      Craig Frear, Wei Liao, Tim Ewing and Shulin Chen

      Article first published online: 16 JUN 2011 | DOI: 10.1002/clen.201000316

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      This is a case specific study limited by the specific substrates and digester technology employed. It is expected that the data and conclusions derived will offer researchers information previously unattainable in regard to data quantity, scale, comparison to manure-only baseline, comparison of commercial-scale performance to laboratory-batch predictions, and application to economics and nutrient balance.

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