共查询到20条相似文献,搜索用时 31 毫秒
1.
Yuan-yuan Wei Yan Liu Yun Zhang Rui-hua Dai Xiang Liu Jin-jian Wu Qiang Zhang 《Environmental science and pollution research international》2011,18(1):46-50
Introduction
Effluent organic matter from biological wastewater treatment plants is composed of degradation products and soluble microbial products (SMP). Protein, polysaccharide, humic acid, and DNA were major biomolecules of SMP. Little is known about the effects of SMP as microbially derived precursors on disinfection byproduct formation and speciation in biologically treated wastewater. In addition, there has never been any attempt to directly chlorinate the major biomolecules of SMP. 相似文献2.
Ge Yuan Chen Chengrong Xu Zhihong Eldridge Simon M. Chan Kwong Yin He Yan He Ji-Zheng 《Environmental science and pollution research international》2010,17(3):807-815
Background, aim, and scope
Current Australian legislation permits the beneficial application of grease trap waste (GTW) to agricultural soil, viewing it as a beneficial source of organic matter and soil conditioner containing no/low amounts of metals or pathogenic organisms. However, little is known about the influence of GTW on soil bacterial community. A field experiment was established at Menangle in south western Sydney in Australia to quantitatively assess the impacts of different types (GTW CO and GTW CL) and amounts of GTW application on the soil bacterial community and diversity. Furthermore, a municipal solid waste (MSW) compost was simultaneously examined to compare against the other organic wastes. Knowledge about the shifts in microbial community structure and diversity following the applications of organic wastes could help to evaluate the ecological consequences on the soil and thus to develop sound regulatory guidelines for the beneficial reuse of organic wastes in agricultural lands. 相似文献3.
Pringault O Viret H Duran R 《Environmental science and pollution research international》2012,19(3):879-892
Purpose
The main goals of this study were (1) to examine the effects of zinc on the microbial community structure of anthropogenically impacted sediments in a tropical coastal ecosystem and (2) to determine whether these microbial benthic communities may enhance the adsorption of zinc. 相似文献4.
Microbial communities to mitigate contamination of PAHs in soil—possibilities and challenges: a review 总被引:1,自引:0,他引:1
F. Fernández-Luqueño C. Valenzuela-Encinas R. Marsch C. Martínez-Suárez E. Vázquez-Núñez L. Dendooven 《Environmental science and pollution research international》2011,18(1):12-30
Background, aim, and scope
Although highly diverse and specialized prokaryotic and eukaryotic microbial communities in soil degrade polycyclic aromatic hydrocarbons (PAHs), most of these are removed slowly. This review will discuss the biotechnological possibilities to increase the microbial dissipation of PAHs from soil as well as the main biological and biotechnological challenges. 相似文献5.
Microbial regeneration of spent activated carbon dispersed with organic contaminants: mechanism, efficiency, and kinetic models 总被引:2,自引:0,他引:2
Background and purpose
Regeneration of spent activated carbon assumes paramount importance in view of its economic reuse during adsorptive removal of organic contaminants. Classical thermal, chemical, or electrochemical regeneration methods are constrained with several limitations. Microbial regeneration of spent activated carbon provides a synergic combination of adsorption and biodegradation.Methods
Microorganisms regenerate the surface of activated carbon using sorbed organic substrate as a source of food and energy. Aromatic hydrocarbons, particularly phenols, including their chlorinated derivatives and industrial waste water containing synthetic organic compounds and explosives-contaminated ground water are the major removal targets in adsorption?Cbioregeneration process. Popular mechanisms of bioregeneration include exoenzymatic hypothesis and biodegradation following desorption. Efficiency of bioregeneration can be quantified using direct determination of the substrate content on the adsorbent, the indirect measurement of substrate consumption by measuring the carbon dioxide production and the measurement of oxygen uptake. Modeling of bioregeneration involves the kinetics of adsorption/desorption and microbial growth followed by solute degradation. Some modeling aspects based on various simplifying assumptions for mass transport resistance, microbial kinetics and biofilm thickness, are briefly exposed.Results
Kinetic parameters from various representative bioregeneration models and their solution procedure are briefly summarized. The models would be useful in predicting the mass transfer driving forces, microbial growth, substrate degradation as well as the extent of bioregeneration.Conclusions
Intraparticle mass transfer resistance, incomplete regeneration, and microbial fouling are some of the problems needed to be addressed adequately. A detailed techno-economic evaluation is also required to assess the commercial aspects of bioregeneration. 相似文献6.
Effects of livestock wastewater variety and disinfectants on the performance of constructed wetlands in organic matters and nitrogen removal 总被引:1,自引:0,他引:1
Hu YS Kumar JL Akintunde AO Zhao XH Zhao YQ 《Environmental science and pollution research international》2011,18(8):1414-1421
Background, aim and scope
Treatment performance of constructed wetlands (CWs) is largely dependent on the characteristics of the wastewater. Although livestock wastewater is readily biodegradable in general, its variety in biodegradability can still be significant in practice. In addition, it is a common practice to periodically use disinfectants in livestock activities for health concerns. Obviously, the residual of the disinfectants in livestock wastewater may have serious inhibitory effect on the microbial activities during wastewater treatment. Thus, the main objective of this study was to examine the variety of livestock wastewater in biodegradability and its effect on the performance of a pilot scale tidal flow CWs (TFCWs) in organic matter and nitrogen removal. Furthermore, investigation of the potential inhibition of the chosen disinfectants on organic matter biodegradation and nitrification was another aim of this study. 相似文献7.
Giloteaux L Solé A Esteve I Duran R 《Environmental science and pollution research international》2011,18(7):1147-1159
Introduction
A Microcoleus sp. consortium, obtained from the Ebro delta microbial mat, was maintained under different conditions including uncontaminated, lead-contaminated, and acidic conditions. 相似文献8.
Effects of mercury on the activity and community composition of soil ammonia oxidizers 总被引:2,自引:0,他引:2
Yu-Rong Liu Yuan-Ming Zheng Ju-Pei Shen Li-Mei Zhang Ji-Zheng He 《Environmental science and pollution research international》2010,17(6):1237-1244
Purpose
Experiments were conducted to examine the effects of mercury (Hg) on soil nitrification activities and the microbial communities of ammonia-oxidizing bacteria (AOB) and ammonia-oxidizing archaea (AOA). 相似文献9.
Huda Mahmoud Redha Al-Hasan Majida Khanafer Samir Radwan 《Environmental science and pollution research international》2010,17(2):383-391
Background, aim, and scope
Due to the active production and transport of crude oil in the Arabian Gulf region, the Arabian Gulf coasts are routinely polluted with oil. Therefore, such coasts have been subject of studies aiming at assessing the roles of indigenous microbial consortia in cleaning these environments. In the present study, epilithic microbial communities along Kuwait coasts were studied for their oil degradation potential. 相似文献10.
Amorri J Geffroy-Rodier C Boufahja F Mahmoudi E Aïssa P Ksibi M Amblès A 《Environmental science and pollution research international》2011,18(9):1606-1616
Introduction
Complex organic compounds found in oil and sediments linked with a particular source (such as algae, bacteria or vascular plants) are defined as biomarkers and are useful dating indicators in organic geochemistry. 相似文献11.
Kamila Deavers Tomas Macek Ulrich G. Karlson Stefan Trapp 《Environmental science and pollution research international》2010,17(7):1355-1361
Background
Chlorobenzoic acids (CBA) are intermediate products of the aerobic microbial degradation of PCB and several pesticides. This study explores the feasibility of using basket willows, Salix viminalis, to remove 4-CBA from polluted sites, which also might stimulate PCB degradation. 相似文献12.
Fang G Si Y Tian C Zhang G Zhou D 《Environmental science and pollution research international》2012,19(3):784-793
Purpose
Degradation of 2,4-dichlorophenoxyacetic acid (2,4-D) in soils by Fe3O4 nanoparticles combined with soil indigenous microbes was investigated, and the effects of Fe3O4 nanoparticles on soil microbial populations and enzyme activities were also studied. 相似文献13.
Ashis K. Mukherjee Naba K. Bordoloi 《Environmental science and pollution research international》2011,18(3):471-478
Purpose
Spillage of petroleum hydrocarbons causes significant environmental pollution. Bioremediation is an effective process to remediate petroleum oil contaminant from the ecosystem. The aim of the present study was to reclaim a petroleum oil-contaminated soil which was unsuitable for the cultivation of crop plants by using petroleum oil hydrocarbon-degrading microbial consortium. 相似文献14.
Zhou ZF Zheng YM Shen JP Zhang LM He JZ 《Environmental science and pollution research international》2011,18(9):1644-1652
Purpose
Denitrification is an important biochemical process in global nitrogen cycle, with a potent greenhouse gas product N2O. Wastewater irrigation can result in the changes of soil properties and microbial communities of agricultural soils. The purpose of this study was to examine how the soil denitrification genes responded to different irrigation regimes. 相似文献15.
Environmental risk assessment and concentration trend of atmospheric volatile organic compounds in Hyogo Prefecture, Japan 总被引:4,自引:1,他引:3
Okada Y Nakagoshi A Tsurukawa M Matsumura C Eiho J Nakano T 《Environmental science and pollution research international》2012,19(1):201-213
Purpose
The purpose of this study was to evaluate the influences of volatile organic compounds (VOCs) emissions on hazardousness and photochemical reactivity and to propose efficient VOCs abatement strategies. 相似文献16.
Kacar A 《Environmental science and pollution research international》2011,18(8):1384-1389
Purpose
The aim of this work was to determine some microbial characteristics of Mytilus galloprovincialis harvested from four stations, located in Izmir coastal area (Eastern Aegean Sea, Turkey). The area along the Izmir coast is densely populated, and it includes extensive agricultural lands, industrial and domestic discharge. Shellfish contamination from sewage-polluted waters is very important for public health. 相似文献17.
Noorizadeh H Farmany A 《Environmental science and pollution research international》2012,19(4):1252-1259
Introduction
A quantitative structure-retention relation (QSRR) study was conducted on the retention times of organic pollutants in textile wastewaters and landfill leachate which was obtained by liquid chromatography-reversed phase-atmospheric pressure chemical ionization-mass spectrometry. 相似文献18.
Lopes C Herva M Franco-Uría A Roca E 《Environmental science and pollution research international》2011,18(6):918-939
Background, aim, and scope
In this work, an environmental risk assessment of reusing organic waste of differing origins and raw materials as agricultural fertilizers was carried out. An inventory of the heavy metal content in different organic wastes (i.e., compost, sludge, or manure) from more than 80 studies at different locations worldwide is presented. 相似文献19.
Wang M Markert B Shen W Chen W Peng C Ouyang Z 《Environmental science and pollution research international》2011,18(6):958-967
Introduction
To promote rational and sustainable use of soil resources and to maintain the urban soil quality, it is essential to assess urban ecosystem health. In this study, the microbiological properties of urban soils in Beijing and their spatial distribution patterns across the city were evaluated based on measurements of microbial biomass carbon and urease and invertase activities of the soils for the purpose of assessing the urban ecosystem health of Beijing. 相似文献20.
Stefan Platikanov Roma Tauler Pedro M. S. M. Rodrigues Maria Cristina G. Antunes Dilson Pereira Joaquim C. G. Esteves da Silva 《Environmental science and pollution research international》2010,17(8):1389-1400