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Journal of Environmental Management

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https://www.readbyqxmd.com/read/28238545/drawing-a-line-in-the-sand-effectiveness-of-off-highway-vehicle-management-in-california-s-sonoran-desert
#1
Nathan A Custer, Lesley A DeFalco, Kenneth E Nussear, Todd C Esque
Public land policies manage multiple uses while striving to protect vulnerable plant and wildlife habitats from degradation; yet the effectiveness of such policies are infrequently evaluated, particularly for remote landscapes that are difficult to monitor. We assessed the use and impacts of recreational vehicles on Mojave Desert washes (intermittent streams) in the Chemehuevi Desert Wildlife Management Area (DWMA) of southern California. Wash zones designated as open and closed to off-highway vehicle (OHV) activity were designed in part to protect Mojave desert tortoise (Gopherus agassizii) habitat while allowing recreation in designated areas...
February 23, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28238544/the-mechanisms-of-heavy-metal-immobilization-by-cementitious-material-treatments-and-thermal-treatments-a-review
#2
REVIEW
Bin Guo, Bo Liu, Jian Yang, Shengen Zhang
Safe disposal of solid wastes containing heavy metals is a significant task for environment protection. Immobilization treatment is an effective technology to achieve this task. Cementitious material treatments and thermal treatments are two types of attractive immobilization treatments due to that the heavy metals could be encapsulated in their dense and durable wasteforms. This paper discusses the heavy metal immobilization mechanisms of these methods in detail. Physical encapsulation and chemical stabilization are two fundamental mechanisms that occur simultaneously during the immobilization processes...
February 23, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28237847/social-learning-in-the-anthropocene-novel-challenges-shadow-networks-and-ethical-practices
#3
REVIEW
Jeremy J Schmidt
The Anthropocene presents novel challenges for environmental management. This paper considers the challenges that the Anthropocene poses for social learning techniques in adaptive management. It situates these challenges with respect to how anthropogenic forcing on the Earth system affects the conditions required for: (1) The cooperative exercises of social learning; (2) The techniques used for assessing the fit of institutions to social-ecological systems; and, (3) The strategies employed for identifying management targets that are transformed by human action...
February 23, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28237846/decision-support-for-water-quality-management-of-contaminants-of-emerging-concern
#4
Astrid Fischer, Thomas Ter Laak, Jan Bronders, Nele Desmet, Ekkehard Christoffels, Annemarie van Wezel, Jan Peter van der Hoek
Water authorities and drinking water companies are challenged with the question if, where and how to abate contaminants of emerging concern in the urban water cycle. The most effective strategy under given conditions is often unclear to these stakeholders as it requires insight into several aspects of the contaminants such as sources, properties, and mitigation options. Furthermore the various parties in the urban water cycle are not always aware of each other's requirements and priorities. Processes to set priorities and come to agreements are lacking, hampering the articulation and implementation of possible solutions...
February 23, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28237845/fuzzy-logic-applied-to-prospecting-for-areas-for-installation-of-wood-panel-industries
#5
Alexandre Rosa Dos Santos, Ewerthon Mattos Paterlini, Nilton Cesar Fiedler, Carlos Antonio Alvares Soares Ribeiro, Alexandre Simões Lorenzon, Getulio Fonseca Domingues, Gustavo Eduardo Marcatti, Nero Lemos Martins de Castro, Thaisa Ribeiro Teixeira, Gleissy Mary Amaral Dino Alves Dos Santos, Ronie Silva Juvanhol, Elvis Ricardo Figueira Branco, Pedro Henrique Santos Mota, Lilianne Gomes da Silva, Daiani Bernardo Pirovani, Waldir Cintra de Jesus, Ana Carolina de Albuquerque Santos, Helio Garcia Leite, Setsuo Iwakiri
Prospecting for suitable areas for forestry operations, where the objective is a reduction in production and transportation costs, as well as the maximization of profits and available resources, constitutes an optimization problem. However, fuzzy logic is an alternative method for solving this problem. In the context of prospecting for suitable areas for the installation of wood panel industries, we propose applying fuzzy logic analysis for simulating the planting of different species and eucalyptus hybrids in Espírito Santo State, Brazil...
February 23, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28237221/performance-analysis-of-a-continuous-serpentine-flow-reactor-for-electrochemical-oxidation-of-synthetic-and-real-textile-wastewater-energy-consumption-mass-transfer-coefficient-and-economic-analysis
#6
Indu M Sasidharan Pillai, Ashok K Gupta
A continuous flow electrochemical reactor was developed, and its application was tested for the treatment of textile wastewater. A parallel plate configuration with serpentine flow was chosen for the continuous flow reactor. Uniparameter optimization was carried out for electrochemical oxidation of synthetic and real textile wastewater (collected from the inlet of the effluent treatment plant). Chemical Oxygen Demand (COD) removal efficiency of 90% was achieved for synthetic textile wastewater (initial COD - 780 mg L(-1)) at a flow rate of 500 mL h(-1) (retention time of 6 h) and a current density of 1...
February 23, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28237223/importance-of-weak-base-poplar-wastes-to-process-performance-and-methane-yield-in-solid-state-anaerobic-digestion
#7
Yiqing Yao, Shulin Chen, Gopi Krishna Kafle
Failure of methane yield is common for anaerobic digestion (AD) of "weak-acid/acid" wastes alone. In order to verify the importance of pH of materials on the process performance and the methane yield, the "weak-base" wastes-poplar wastes (PW) were used as substrate of solid-state AD (SS-AD). The results show that PW could be used for efficient methane yield after NaOH treatment, the total methane yield was 81.1 L/kg volatile solids (VS). PW also could be used for anaerobic co-digestion with high-pH cattle slurry (CM)...
February 22, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28237222/evaluation-of-low-impact-development-approach-for-mitigating-flood-inundation-at-a-watershed-scale-in-china
#8
Maochuan Hu, Takahiro Sayama, Xingqi Zhang, Kenji Tanaka, Kaoru Takara, Hong Yang
Low impact development (LID) has attracted growing attention as an important approach for urban flood mitigation. Most studies evaluating LID performance for mitigating floods focus on the changes of peak flow and runoff volume. This paper assessed the performance of LID practices for mitigating flood inundation hazards as retrofitting technologies in an urbanized watershed in Nanjing, China. The findings indicate that LID practices are effective for flood inundation mitigation at the watershed scale, and especially for reducing inundated areas with a high flood hazard risk...
February 22, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28237220/impacts-of-iron-and-steelmaking-facilities-on-soil-quality
#9
Vladimir Strezov, Chandrakant Chaudhary
Iron and steel are highly important materials used in a wide range of products with important contribution to the economic development. The processes for making iron and steel are energy intensive and known to contribute to local pollution. Deposition of the metals may also have adverse impacts on soil quality, which requires detailed assessment. The aim of this study was to investigate the impacts of iron and steelmaking facilities on the local soil quality. Soil samples were collected in the vicinity of two steelmaking sites in Australia, one based on blast furnace steelmaking operation, while the second site was based on electric arc furnace steel recycling...
February 22, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28237219/recent-advances-in-vapor-intrusion-site-investigations
#10
Thomas McHugh, Per Loll, Bart Eklund
Our understanding of vapor intrusion has evolved rapidly since the discovery of the first high profile vapor intrusion sites in the late 1990s and early 2000s. Research efforts and field investigations have improved our understanding of vapor intrusion processes including the role of preferential pathways and natural barriers to vapor intrusion. This review paper addresses recent developments in the regulatory framework and conceptual model for vapor intrusion. In addition, a number of innovative investigation methods are discussed...
February 22, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28236700/from-single-use-to-multi-use-study-of-consumers-behavior-toward-consumption-of-reusable-containers
#11
Myriam Ertz, Rong Huang, Myung-Soo Jo, Fahri Karakas, Emine Sarigöllü
This study advances the theory of planned behavior (TPB) to identify the mechanism that underlies the consumption of reusable containers. A questionnaire including context, motivation, subjective norms, attitudes, perceived behavioral control, intentions and behavior items was developed and pre-tested on 180 students in a Canadian and a Chinese university respectively. Subsequently, the questionnaire was implemented in the form of an online survey and 1221 effective responses were collected from Western (n = 549) and Asian (n = 672) consumers...
February 22, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28236699/impact-of-operations-and-cleaning-on-membrane-fouling-at-a-wastewater-reclamation-facility
#12
Murthy Kasi, Halis Simsek, Steve Ahlschlager, Kent Ritterman, Jim Hausauer, Jeff Hoff, Eakalak Khan
Effects of operational changes on membrane fouling were evaluated for a wastewater reclamation facility. The focuses were on addition of a coagulant (ferric chloride) versus no addition and an accidental high chlorine (sodium hypochlorite) dose. Two membrane modules with different service ages, 3 years versus 9 months, were compared. Fouling rates ranged between 2 and 3 times higher during no ferric chloride addition. Chemical cleaning frequency was reduced by approximately 5 times during ferric chloride addition for older membranes, while it did not change for newer membranes...
February 22, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28235731/carbon-dynamics-on-agricultural-land-reverting-to-woody-land-in-ontario-canada
#13
Mihai F Voicu, Cindy Shaw, Werner A Kurz, Ted Huffman, Jiangui Liu, Max Fellows
The 2015 Paris Agreement reinforces the importance of the land sector and its contribution to greenhouse gas (GHG) reductions. Thus, there is growing interest in improving estimates of the GHG balance in response to land-use changes (LUCs) involving agriculture and forestry, for national-scale reporting, and for carbon (C) offsets. Large agricultural areas in Europe, Russia and North America are reverting to forest, either naturally or through planting, after abandonment of agricultural land, and this trend may have a substantial impact on carbon budgets...
February 21, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28235730/effect-of-organic-loading-rates-on-biodegradation-of-linear-alkyl-benzene-sulfonate-oil-and-grease-in-greywater-by-integrated-fixed-film-activated-sludge-ifas
#14
Hadi Eslami, Mohammad Hassan Ehrampoush, Mohammad Taghi Ghaneian, Mehdi Mokhtari, Aliasghar Ebrahimi
In this study, performance of Integrated Fixed-film Activated Sludge (IFAS) system in treatment of Linear Alkylbenzene Sulfonate (LAS), and oil & grease in synthetic greywater and effect of Organic Loading Rates (OLRs) on removal efficiency within a period of 105 days were investigated. Present study was carried out in a pilot scale under such conditions as temperature of 30 ± 1 °C, dissolved oxygen of 2.32 ± 0.91 mg/l, pH of 8.01 ± 0.95 and OLRs of 0.11-1.3gCOD/L.d. Also, Scanning Electron Microscopy (SEM) images were employed to specify rate of the biofilm formed on the media inside the reactor IFAS...
February 21, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28233638/current-state-of-in-situ-subsurface-remediation-by-activated-carbon-based-amendments
#15
REVIEW
Dimin Fan, Edward J Gilbert, Tom Fox
The last decade has seen a growing interest in applying activated carbon (AC)-based amendments for in situ subsurface remediation of organic contaminants such as chlorinated solvents and petroleum hydrocarbons. This remedial technology has been promoted by several major AC-based product vendors on the market. These products involve impregnation or co-application of chemical or biological additives to facilitate various contaminant degradation processes in conjunction with contaminant adsorption. During field applications, rapid contaminant removal and limited rebound after emplacement have often been reported and considered as two major advantages for this remedial technology...
February 20, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28233637/electrokinetic-remediation-of-soils-contaminated-by-potentially-toxic-metals-dedicated-analytical-tools-for-assessing-the-contamination-baseline-in-a-complex-scenario
#16
Aurelio Ferrucci, Marco Vocciante, Roberto Bagatin, Sergio Ferro
In order to assess the capabilities of a remediation technology, and to judge of its efficacy, it is necessary to evaluate the initial average contamination level of the soil, an operation that can be difficult because of the inhomogeneity of the contamination itself. The goal is even more challenging when different contaminants are present, greatly differing both in terms of nature and of concentration. By referring to an industrial site contaminated mainly by As, Cd, Cu, Pb, Sb, Tl and Zn, we present a new approach for the necessary processing of sampling data, in order to establish the pre-intervention baseline: an estimate of the average contamination has been obtained through a suitable integration of the volume underlying the distribution curve of each contaminating species...
February 20, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28232244/green-infrastructure-development-at-european-union-s-eastern-border-effects-of-road-infrastructure-and-forest-habitat-loss
#17
Per Angelstam, Olha Khaulyak, Taras Yamelynets, Gintautas Mozgeris, Vladimir Naumov, Tadeusz J Chmielewski, Marine Elbakidze, Michael Manton, Bohdan Prots, Sviataslau Valasiuk
The functionality of forest patches and networks as green infrastructure may be affected negatively both by expanding road networks and forestry intensification. We assessed the effects of (1) the current and planned road infrastructure, and (2) forest loss and gain, on the remaining large forest landscape massifs as green infrastructure at the EU's eastern border region in post-socialistic transition. First, habitat patch and network functionality in 1996-98 was assessed using habitat suitability index modelling...
February 20, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28232243/rapid-prediction-of-particulate-humus-and-resistant-fractions-of-soil-organic-carbon-in-reforested-lands-using-infrared-spectroscopy
#18
Dinesh B Madhavan, Jeff A Baldock, Zoe J Read, Simon C Murphy, Shaun C Cunningham, Michael P Perring, Tim Herrmann, Tom Lewis, Timothy R Cavagnaro, Jacqueline R England, Keryn I Paul, Christopher J Weston, Thomas G Baker
Reforestation of agricultural lands with mixed-species environmental plantings can effectively sequester C. While accurate and efficient methods for predicting soil organic C content and composition have recently been developed for soils under agricultural land uses, such methods under forested land uses are currently lacking. This study aimed to develop a method using infrared spectroscopy for accurately predicting total organic C (TOC) and its fractions (particulate, POC; humus, HOC; and resistant, ROC organic C) in soils under environmental plantings...
February 20, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28232242/conversion-of-post-consumer-waste-polystyrene-into-a-high-value-adsorbent-and-its-sorptive-properties-for-congo-red-removal-from-aqueous-solution
#19
Nhamo Chaukura, Bhekie B Mamba, Shivani B Mishra
Using post-consumer waste polystyrene (WPS), a conjugated microporous polymer (CMP) was synthesised and activated into a sulphonic-group carrying resin (SCMP). The surface chemistry of the materials showed a decline in both the aromatic CH and aliphatic CH2 stretching vibrations confirming successful crosslinking. The synthesised polymers were thermally stable with decomposition temperatures above 300 °C, had surface heterogeneity, and BET surface areas of 752 and 510 m(2)/g, respectively. A distribution of pores ranging from meso- to micro-pores was comparable to other CMPs...
February 20, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28226263/comparing-impacts-between-formal-and-informal-recreational-trails
#20
Catherine Marina Pickering, Patrick Norman
Globally there are hundreds of thousands of kilometres of recreational trails traversing natural areas of high conservation value: but what are their impacts and do impacts differ among trails? We compared the effects of four common types of recreational trails [(1) narrow and (2) medium width informal bare earth trails and (3) gravel and (4) tarmac/concrete formal trails] on vegetation adjacent to trails in a high conservation value plant community that is popular for mountain biking and hiking in Australia...
February 19, 2017: Journal of Environmental Management
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