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排序方式: 共有350条查询结果,搜索用时 15 毫秒
241.
Kamaludin Roziana Othman Mohd Hafiz Dzarfan Kadir Siti Hamimah Sheikh Abdul Khan Jesmine Ismail Ahmad Fauzi Rahman Mukhlis A. Jaafar Juhana 《Environmental science and pollution research international》2023,30(1):259-273
Environmental Science and Pollution Research - Various treatments of choice are available to overcome contamination of bisphenol A (BPA) in the environment including membrane technologies; however,... 相似文献
242.
A study was carried out in Pettavaithalai area to evaluate the current status of physico-chemical contaminants and their sources in groundwater. Groundwater samples collected from pettavaithalai area in 15 different stations were analyzed every alternative months over a period of two years from August 2000 to June 2002. A sugar mill is situated at the heart of the study area. Three profiles (profile A, B and C) were selected based on the direction in which the sugar mill effluent flows. In each profile five samples were collected from five different station at a regular distance of about 1 Km. The physico-chemical parameters such as pH, EC TDS, TH, NO3, SO4, PO4, Na, K, Ca, Mg, DO, BOD and COD have been analyzed. The results showed that among the three profiles, many of the estimated physico-chemical parameters of profile C were very high when compared to profile B and A which indicates the poor quality of the groundwater around this area. 相似文献
243.
This paper examined the factors that might influence participating farmers’ willingness-to-pay for the Tree Farming Fund (TFF)
established for sustainable development of participatory forest management (PFM). Information on willingness-to-pay, socioeconomic
characteristics, and attitudes of participating farmers toward TFF were obtained from interviews with 581 participating farmers.
Logistic regression analysis was used to determine the dominant factors that might influence participating farmers’ willingness-to-pay
for the TFF. The results showed that participating farmers’ willingness-to-pay was significantly affected by (i) family income;
(ii) education level; (iii) confidence that his aspired benefits will be received; (iv) agreement with the statement that
‘PFM is sustainable under the present state of management’; (v) agreement with the statement that ‘PFM is a good strategy
for forest conservation’; and (vi) knowledge of PFM strategies. Thus, participating farmers with a higher level of education,
higher income and positive attitudes toward TFF tended to express more willingness-to-pay. Establishment of TFF could be an
effective strategy in implementing sustainable PFM in Bangladesh. For this strategy to succeed, however, active partnership
between the participating farmers and Forest Department is required. Participating farmers’ attitudes toward TFF should therefore
be taken into consideration as should the results of this study, which are important indicators of participating farmers’
positive attitudes toward TFF. 相似文献
244.
Mir Ajaz Ahmad Mushtaq Jasir Dar Abdul Qayoom Patel Mahesh 《Journal of Material Cycles and Waste Management》2023,25(1):535-549
Journal of Material Cycles and Waste Management - Methane has tremendous potential for energy production, and enormous amounts of energy can be produced using suitable technology. To address this... 相似文献
245.
Rasool Bux MAHAR Abdul Razaque SAHITO Dongbei YUE Kamranullah KHAN 《Frontiers of Environmental Science & Engineering》2016,10(1):159-167
The cumulative landfill gas (LFG) production and its rate were simulated for pretreated municipal solid waste (MSW) landfill using four models namely first order exponential model, modified Gompertz model, single component combined growth and decay model and Gaussian function. Considering the behavior of the pretreated MSW landfill, a new multi component model was based on biochemical processes that occurring in landfilled pretreated MSW. The model was developed on the basis of single component combined growth and decay model using an anaerobic landfill simulator reactor which treats the pretreated MSW. It includes three components of the degradation i.e. quickly degradable, moderately degradable and slowly degradable. Moreover, the developed model was statistically analyzed for its goodness of fit. The results show that the multi components LFG production model is more suitable in comparison to the simulated models and can efficiently be used as a modeling tool for pretreated MSW landfills. The proposed model is likely to give assistance in sizing of LFG collection system, generates speedy results at lower cost, improves cost-benefit analysis and decreases LFG project risk. It also indicates the stabilization of the landfill and helps the managers in the reuse of the landfill space. The proposed model is limited to aerobically pretreated MSW landfill and also requires the values of delay times in LFG productions from moderately and slowly degradable fractions of pretreated MSW. 相似文献
246.
Z. Nahrul Hayawin H. P. S. Abdul Khalil M. Jawaid M. Hakimi Ibrahim A. A. Astimar 《The Environmentalist》2010,30(3):273-278
The aim of this work was to study the physical and chemical properties of different oil palm wastes, viz. empty fruit bunch
(EFB), oil palm frond (OPF) and oil palm trunk (OPT). A study (84 days duration) was conducted to evaluate the efficiency
of an exotic earthworm species (epigeic-African Nightcrawler (Eudrilus euginae)) for the decomposition of different types of oil palm wastes (EFB, OPT and OPF) into valuable vermicompost. The decrease
in earthworm’s biomass gain for EFB, OPT and OPF may be due to exhaustion of worm feed in vermicomposters. The percentage
of nitrogen, phosphorous and potassium in vermicompost was found to increase while pH and total organic carbon declined as
a function of the vermicomposting period. The vermicompost obtained showed an increase in heavy metal content for all the
reactors, but levels were still in the range of nutrient in the vermicompost. The data reveal that vermicomposting (using
African Nightcrawler) is a suitable technology for the decomposition of oil palm wastes, especially EFB into value-added material. 相似文献
247.
Muhammed Siddik Abdul Samad Aswathi Padippingal Babu J. Alappat 《Environmental Forensics》2019,20(2):162-170
Indian statutes identify twelve different types of biomedical wastes and give the treatment and disposal options for each. Since it is not possible for every generator of biomedical waste to go for their own treatment and disposal facility, the small-scale generators take the service of centralized treatment and disposal facilities available to them on payment. In the state of Kerala in India, where the basic health indicators match those of many developed countries, the centralized biomedical waste treatment facility is run by Indian Medical Association (IMA), Kerala, under the banner IMAGE (IMA Goes Eco-Friendly) at a place called “Kanjikode” in the Palakkad District. The facility receives biomedical waste from around 4500 hospitals across the State and an equal number of medical laboratories. The plant incinerates the incinerable waste and the other kind of waste are disinfected and decontaminated. The residual ash and dried sludge are then moved to the landfill area. Recently, the facility was in the middle of a controversy due to the alleged health hazards it posed to the surrounding population. An environmental forensic investigation was carried out at the site to establish the merits of the allegation. The reported study is a part of the investigation where groundwater was analysed for the presence of heavy metals. As the biomedical waste contain heavy metals like Zn, Pb, Cd, Cr, and Hg, the presence of these were analysed to establish contamination of groundwater by the facility. The study area is bounded by Malampuzha dam and Korayar river. Groundwater contaminant transport modelling was done for a 3430 m × 3960 m area surrounding the waste treatment facility using Visual MODFLOW and MODPATH. Ground water flow direction and particle pathlines were computed to track the movement of contaminants. Groundwater samples were collected from the area shown to be polluted by the model, if metals were discharged by the facility, and also from outside this area. Water samples were collected conforming to the guidelines in the “Pollution Crime Forensic Investigation Manual” published by INTERPOL. The collected water samples were tested for heavy metal concentration using atomic absorption spectroscopy (AAS). The water sample analysis showed that the groundwater is not contaminated by heavy metal discharge from the biomedical treatment facility. 相似文献
248.
Ghodrat Maryam Rhamdhani Muhammad Akbar Khaliq Abdul Brooks Geoffrey Samali Bijan 《Journal of Material Cycles and Waste Management》2018,20(1):386-401
Journal of Material Cycles and Waste Management - In this paper, a detailed thermodynamic analysis of processing of electronic waste (e-waste), particularly printed circuit boards (PCB), through... 相似文献
249.
Most democratic countries hold inquiries into disasters. One of their key functions is to establish the cause of an event and to learn lessons in order to prevent a recurrence. In addition, they offer an opportunity for communal catharsis, permitting the public to vent anger, distress and frustration and to exert pressure for policy changes. Malaysia has experienced six landmark socio-technical disasters since 1968, which resulted in the proposal or amendment of various safety/emergency acts and regulations. The authors used a grounded theory approach utilising a constant comparative method to analyse the recommendations made by the inquiries into these events. Data indicate that social and technical recommendations comprise 85 and 15 per cent, respectively, of the total recommendations made by the inquiry committees. This paper offers suggestions for improving the management of inquiry tribunals, as they will remain a valuable source of information for society and corporations to learn from past incidents. 相似文献
250.
A. M. Issam B. T. Poh H. P. S. Abdul Khalil W. C. Lee 《Journal of Polymers and the Environment》2009,17(3):165-169
Solid and soft forms of waste polystyrene have been treated with coumarone–indene resin and benzene to produce a new adhesive.
The adhesive is prepared from various compositions of polystyrene (13–38 wt%), coumarone-indene resin (5–7%) and benzene (57–80%).
Viscosity, peel strength and tensile shear strength of the adhesive is determined by a HAAKE Rotary Viscometer, Lloyd Adhesion
Tester and Instron machine, respectively. Rolling ball technique was used to measure the tackiness of the adhesive. Results
show that the adhesion property increases with increase in polystyrene composition and coating thickness. This observation
is attributed to the increasing wettability of adhesive on the substrate. 相似文献