Frontiers of Environmental Science & Engineering

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Exploring the development of municipal solid waste disposal facilities in Chinese cities: patterns and drivers
Frontiers of Environmental Science & Engineering - Tập 17 - Trang 1-12 - 2023
Xiao Li, Yanan Ren, Xuezhao Chen, Yang Li, Marian R. Chertow
Rapid urbanization in Chinese cities has led to a surge in municipal solid waste (MSW) generation, necessitating the development of high-quality MSW disposal facilities. This study utilizes multi-source data and regression models to examine the status, development pathways, and driving forces of MSW disposal facilities in China. Our findings reveal an inverted U-shaped relationship between the cap...... hiện toàn bộ
Emissions analysis on second generation biodiesel
Frontiers of Environmental Science & Engineering - - 2016
Yuvarajan Devarajan, Ravi kumar Jayabal, Devanathan Ragupathy, Harish Venu
This work investigates the effect of adding pentanol with biodiesel derived from cashew nut shell on its emissions characteristics is conducted in stationery diesel engine. The main purpose of this work is intended to reduce the emissions by fuelling biodiesel derived from cashew nut shell and the pentanol blends. Cashew nut shell biodiesel is prepared by transesterification process. Oxygenated ad...... hiện toàn bộ
Simultaneous removal of arsenate and fluoride from water by Al-Fe (hydr)oxides
Frontiers of Environmental Science & Engineering - Tập 8 - Trang 169-179 - 2013
Junlian Qiao, Zimin Cui, Yuankui Sun, Qinghai Hu, Xiaohong Guan
Al-Fe (hydr)oxides with different Al/Fe molar ratios (4:1, 1:1, 1:4, 0:1) were prepared using a coprecipitat method and were then employed for simultaneous removal of arsenate and fluoride. The 4Al: Fe was superior to other adsorbents for removal of arsenate and fluoride in the pH range of 5.0–9.0. The adsorption capacity of the Al-Fe (hydr)oxides for arsenate and fluoride at pH 6.5±0.3 increased ...... hiện toàn bộ
Optimization of methyl orange removal from aqueous solution by response surface methodology using spent tea leaves as adsorbent
Frontiers of Environmental Science & Engineering - Tập 8 - Trang 496-502 - 2013
Liangzhi Li, Xiaolin Li, Ci Yan, Weiqiang Guo, Tianyi Yang, Jiaolong Fu, Jiaoyan Tang, Cuiying Hu
The effective disposal of redundant tea waste is crucial to environmental protection and comprehensive utilization of trash resources. In this work, the removal of methyl orange (MO) from aqueous solution using spent tea leaves as the sorbent was investigated in a batch experiment. First, the effects of various parameters such as temperature, adsorption time, dose of spent tea leaves, and initial ...... hiện toàn bộ
Spillover effect of environmental investment: evidence from panel data at provincial level in China
Frontiers of Environmental Science & Engineering - - 2012
Qilang Lin, Guanyi Chen, Wenyi Du, Haipeng Niu
Development of gradient boosting-assisted machine learning data-driven model for free chlorine residual prediction
Frontiers of Environmental Science & Engineering - Tập 18 - Trang 1-12 - 2023
Wiley Helm, Shifa Zhong, Elliot Reid, Thomas Igou, Yongsheng Chen
Chlorine-based disinfection is ubiquitous in conventional drinking water treatment (DWT) and serves to mitigate threats of acute microbial disease caused by pathogens that may be present in source water. An important index of disinfection efficiency is the free chlorine residual (FCR), a regulated disinfection parameter in the US that indirectly measures disinfectant power for prevention of microb...... hiện toàn bộ
Microbial community dynamics at high organic loading rates revealed by pyrosequencing during sugar refinery wastewater treatment in a UASB reactor
Frontiers of Environmental Science & Engineering - Tập 12 - Trang 1-12 - 2018
Liguo Zhang, Qiaoying Ban, Jianzheng Li
The performance and microbial community structure in an upflow anaerobic sludge blanket reactor (UASB) treating sugar refinery wastewater were investigated. The chemical oxygen demand (COD) removal reached above 92.0% at organic loading rates (OLRs) of 12.0–54.0 kgCOD/(m3∙d). The volatile fatty acids (VFAs) in effluent were increased to 451.1 mg/L from 147.9 mg/L and the specific methane productio...... hiện toàn bộ
Fate and risk assessment of emerging contaminants in reclaimed water production processes
Frontiers of Environmental Science & Engineering - Tập 15 - Trang 1-16 - 2021
Yuan Meng, Weiyi Liu, Heidelore Fiedler, Jinlan Zhang, Xinrui Wei, Xiaohui Liu, Meng Peng, Tingting Zhang
Reclaimed water has been widely applied in irrigation and industrial production. Revealing the behavior of emerging contaminants in the production process of reclaimed water is the first prerequisite for developing relevant water quality standards. This study investigated 43 emerging contaminants, including 22 pharmaceuticals and personal care products (PPCPs), 11 organophosphorus flame retardants...... hiện toàn bộ
Modified pretreatment method for total microbial DNA extraction from contaminated river sediment
Frontiers of Environmental Science & Engineering - Tập 9 - Trang 444-452 - 2014
Yun Fang, Meiying Xu, Xingjuan Chen, Guoping Sun, Jun Guo, Weimin Wu, Xueduan Liu
Extraction of high-quality microbial DNA from contaminated environmental samples is an essential step in microbial ecological study. Based on previously published methods for soil and sediment samples, a modified pretreatment method was developed for extracting microbial DNA from heavily contaminated river sediment samples via selection of optimal pretreatment parameters (i.e., reagent solution, r...... hiện toàn bộ
Enhanced methane recovery and exoelectrogen-methanogen evolution from low-strength wastewater in an up-flow biofilm reactor with conductive granular graphite fillers
Frontiers of Environmental Science & Engineering - Tập 12 - Trang 1-10 - 2018
Zechong Guo, Lei Gao, Ling Wang, Wenzong Liu, Aijie Wang
Methane production from low-strength wastewater (LSWW) is generally difficult because of the low metabolism rate of methanogens. Here, an up-flow biofilm reactor equipped with conductive granular graphite (GG) as fillers was developed to enhance direct interspecies electron transfer (DIET) between syntrophic electroactive bacteria and methanogens to stimulate methanogenesis process. Compared to qu...... hiện toàn bộ
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