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211.
Siewhui Chong Guan-Ting Pan Mohammad Khalid Thomas C.-K. Yang Shuo-Ting Hung Chao-Ming Huang 《Journal of Polymers and the Environment》2017,25(2):136-145
3D printing has received lots of attention due to its limitless potential and advantages in comparison to traditional manufacturing processes. This study focuses on the most popular type of home 3D printers, namely fused filament fabrication (FFF) printers, which use plastic filaments as the feedstock. The rather high material cost and large amount of plastic waste generated by FFF 3D printers have driven the need for plastic filaments produced from recycled plastic waste. This study evaluates, in terms of physical characterization, the feasibility of using recycled high-density polyethylene (HDPE), one of the most commonly used plastics, as the feedstock for 3D printers, in comparison with the common acrylonitrile butadiene styrene plastic pellets. In-house extrusion using recycled HDPE pellets and flakes is possible. The diameter consistency and extrusion rate results, along with other physical characterization results, including differential scanning calorimetry, thermogravimetric analysis, Fourier transform infrared spectroscopy, Raman spectroscopy, and water absorption, suggest that making filaments from recycled HDPE pellets is a viable option, as the obtained filament has favorable water rejection and comparable extrusion rate and thermal stability. Existing methods for overcoming the warping and adhesion problems in 3D printing with HDPE were also reviewed. In order to increase the market competitiveness of waste-derived filaments, optimization of the extrusion process, studies on the mechanical and aging properties, and development of a standard characterization methodology and database are crucial. 相似文献
212.
Jahangir Mohammad Hossein Mousavi Seyed Ali Asayesh Zarchi Ruhollah 《Environment, Development and Sustainability》2021,23(10):14494-14527
Environment, Development and Sustainability - The tourism sectors consume a high amount of electrical power, which in most cases is supplied by the electrical grid and diesel generator. As a... 相似文献
213.
Mousazadeh Milad Paital Biswaranjan Naghdali Zohreh Mortezania Zohreh Hashemi Marjan Karamati Niaragh Elnaz Aghababaei Mohammad Ghorbankhani Melika Lichtfouse Eric Sillanpää Mika Hashim Khalid S. Emamjomeh Mohammad Mahdi 《Environment, Development and Sustainability》2021,23(9):12738-12760
Environment, Development and Sustainability - The outbreak of COVID-19 has made a global catastrophic situation that caused 1,039,406 deaths out of 35,347,404 infections, and it will also cause... 相似文献
214.
Safaynikoo Peymaneh Dehghani Mohammad Hossein 《Environmental Economics and Policy Studies》2021,23(2):441-466
Environmental Economics and Policy Studies - Economists have long argued over the political economy of tradable emission permits, especially the political pressure of lobby groups on international... 相似文献
215.
Salman Mohammad Chauhan Ranchan Singh Tej Prabakaran Rajendran Kim Sung Chul 《Environmental science and pollution research international》2023,30(13):36259-36275
Environmental Science and Pollution Research - The effect of the flow and geometric parameters of a dimple-roughened absorber plate on the enactment of solar air collectors (SACs) with air-impinged... 相似文献
216.
Bahrami Asl Farshad Islami-seginsara Mahdi Ebrahimi Kalan Mohammad Hemmatjo Rasoul Hesam Mousa Shafiei-Irannejad Vahid 《Environmental science and pollution research international》2023,30(13):35757-35768
Environmental Science and Pollution Research - Long-term exposure to ionizing radiation (IR) can cause dire health consequences even less than the dose limits. Previous biomonitoring studies have... 相似文献
217.
Das Ananya Baig Nisar Ali Yawar Mohammad Kumar Arun Habib Gazala Perumal Vivekanandan 《Environmental science and pollution research international》2023,30(5):11600-11616
Environmental Science and Pollution Research - Delhi has been identified as one of the highly polluted cities in the world and recently associated with the highest population weighted PM2.5... 相似文献
218.
Massadeh A Al-Sharif L Dalale'h R Hassan M 《Environmental monitoring and assessment》2006,115(1-3):87-93
A total of two hundred and forty random samples were collected equally from mutton, liver and kidney of 40 local (Jordanian) and 40 imported Australian sheep (40 each sub sample). Fresh samples were collected from 12–18 m old sheep slaughtered in abattoirs in Jordan in 2002. Besides, 40 fresh mutton samples of imported Chinese sheep were collected from different markets. Atomic absorption spectrometry (AAS) was used to estimate the lead (Pb) content of the samples. Results indicated that Australian mutton had significantly higher (p < 0.05) mean of lead pollution than that of the local and Chinese muttons. The mean concentration of lead (mg/kg) in Australian, local and Chinese muttons was 4.30, 3.15 and 2.17, respectively. The mean concentration of lead in Australian sheep liver was significantly higher (p < 0.05) than that recorded in the local sheep liver. The mean concentration of Pb in Australian and local sheep liver was 5.69 and 4.52 mg/kg, respectively. The mean concentrations of Pb in the kidney of the Australian and local sheep were not significantly different (p > 0.05). They were 4.59 and 3.87 mg/kg, respectively.On the basis of the samples lead level, 85, 92 and 87.5% of local, Australian and Chinese mutton respectively, exceeded the international safe permissible limit of 1.0 mg/kg. Furthermore, the effect of Pb on animal and human health was discussed. 相似文献
219.
The word “electrocoagulation” (EC) will be sometimes used with “electroflotation” (EF) and can be considered as the electrocoagulation/flotation (ECF) process. Through the process of electrolysis, coagulating agents such as metal hydroxides are produced. When aluminium electrodes are used, the aluminium dissolves at the anode and hydrogen gas is released at the cathode. The coagulating agent combines with the pollutants to form large size flocs. As the bubbles rise to the top of the tank they adhere to particles suspended in the water and float them to the surface. In fact, a conceptual framework of the overall ECF process is linked to coagulant generation, pollutant aggregation, and pollutant removal by flotation and settling when it has been applied efficiently to various water and wastewater treatment processes. This review paper considers a significant number of common applications of EC and ECF processes which have been published in journal and conference papers. 相似文献
220.
A stochastic conflict resolution model for trading pollutant discharge permits in river systems 总被引:1,自引:0,他引:1
This paper presents an efficient methodology for developing pollutant discharge permit trading in river systems considering the conflict of interests of involving decision-makers and the stakeholders. In this methodology, a trade-off curve between objectives is developed using a powerful and recently developed multi-objective genetic algorithm technique known as the Nondominated Sorting Genetic Algorithm-II (NSGA-II). The best non-dominated solution on the trade-off curve is defined using the Young conflict resolution theory, which considers the utility functions of decision makers and stakeholders of the system. These utility functions are related to the total treatment cost and a fuzzy risk of violating the water quality standards. The fuzzy risk is evaluated using the Monte Carlo analysis. Finally, an optimization model provides the trading discharge permit policies. The practical utility of the proposed methodology in decision-making is illustrated through a realistic example of the Zarjub River in the northern part of Iran. 相似文献