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Abstract The aim of this study was to evaluate the long-term effect of urban and green waste compost exogenous organic matter (EOM) on soil dissolved organic matter (DOM). A luvic cambisol was amended 7 years before the study. DOM was investigated along a soil profile down to 1 m depth regarding seasonal variations (autumn and spring). DOM sampled by suction cups was characterized using dissolved organic carbon (DOC) content and excitation emission matrix (EEM) fluorescence. The variability of D...
#1Pan Hu (NU: Nanjing University)H-Index: 1
#2Zhonghua Xi (NU: Nanjing University)
Last.HuYang (NU: Nanjing University)H-Index: 20
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Abstract: Three series of co-graft cationic starch (St)-based flocculants with distinct structural characteristics, namely, charge density (CD), graft-chain length (L), and graft-chain distribution (N), were successfully synthesized through graft copolymerization of [(2-methacryloyloxyethyl) trimethyl ammonium chloride] and acrylamide. These St-based flocculants with different molecular structures were used to flocculate various kaolin suspensions with different initial turbidities and a sodium ...
#1Marcelino Benvindo-Souza (UFG: Universidade Federal de Goiás)H-Index: 1
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Abstract The micronucleus test has been applied for more than three decades in tadpoles, generating an early warning of environmental quality. In this study, we reviewed 48 articles on the micronucleus test in tadpoles, published between 1987 and 2018. The findings reveal that pesticides have been the main topic discussed in the induction of micronucleus and other nuclear abnormalities in anuran larvae to the detriment of the widespread use of compounds used in agriculture. In addition to pestic...
#1Sohrab Haghighi Mood (WSU: Washington State University)
#2Michael Ayiania (WSU: Washington State University)H-Index: 1
Last.Manuel Garcia-Perez (WSU: Washington State University)H-Index: 37
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Abstract This study explores the use of an engineered char produced from the pyrolysis of anaerobically digested fiber (ADF) to adsorb phosphate from aqueous solutions. Two series of engineered chars were produced. The first series was a CO2 activated (CA) char produced via slow pyrolysis between 350 and 750 °C. The second series was a nitrogen doped (ND) char activated in the presence of ammonia at comparable temperatures. Proximate analysis, elemental composition, gas physisorption, Inductivel...
Abstract The photodegradation of benzisothiazolinone was studied in water under UV–Vis irradiation and led to fourteen photoproducts. Chemical structures of these compounds were elucidated using GC-MS, LCMS/MS, and FT-ICR-MS experiments. Based on the chemical structures determined and their appearance order, a photo induced-degradation mechanism of benzisothiazolinone has been proposed, which combines isomerization, oxidation, hydroxylation, hydrolysis, and elimination processes. In silico tests...
#1Honghong Lyu (HEBUT: Hebei University of Technology)H-Index: 1
#2Qianru Zhang (CAS: Chinese Academy of Sciences)H-Index: 1
Last.Boxiong Shen (HEBUT: Hebei University of Technology)
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Abstract With a wide range of raw materials, low cost and large specific surface area, biochar has been widely used in environmental remediation. However, the biochar has a saturated adsorption capacity when it is used as a pollutant adsorbent. Recent efforts have been made to prepare biochar and biochar-based catalysts with enhanced catalytic properties to expand their potential applications. The environmental persistent free radicals (EPFRs) of biochar could react with O2 to induce hydroxyl ra...
#1Yonghua Wang (Hohai University)H-Index: 5
#2Yuxuan Liu (Hohai University)
Last.Guanghua Lu (Hohai University)H-Index: 16
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Abstract Advanced oxidation processes (AOPs) can degrade heavy metal complexes in wastewater to improve the removal efficiency of metals. However, the influences of AOP treatments on toxicity induced by metal complexes are not well understood. This study compared the toxicity induced by EDTA-copper (Cu) after UV/persulfate (PS) and UV/H2O2 treatments on luminescent bacteria and human HepG2 cells. The results showed that EDTA-Cu complexes decreased Cu toxicity in luminescent bacteria but increase...
#1Linlin MaH-Index: 1
#2Nan ChenH-Index: 18
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Abstract Groundwater contaminated by hexavalent chromium (Cr(VI)) has posed severe threat to the environment and public health. Although heterotrophic bioremediation has been known as an efficient approach, little is explored on mineral nutrient source addition such as phosphorus minerals. In this study, the stabilization and sustainability of phosphorus minerals for providing phosphorus has been investigated, and the enhancement of Cr(VI) removal by mixed bacterial consortium coupled with phosp...
#1Anna M. Stefanowicz (PAN: Polish Academy of Sciences)H-Index: 13
#2Paweł Kapusta (PAN: Polish Academy of Sciences)H-Index: 12
Last.Marcin W. Woch (Pedagogical University of Kraków)H-Index: 7
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Abstract This study examined the effects of soil heavy metals, macronutrients, texture and pH as well as plant species richness and composition on soil respiration, enzymatic activity, microbial biomass, metabolic quotient (qCO2) and arbuscular mycorrhizal fungi (AMF) at sites of historical Zn–Pb mining. The study was conducted both on a large scale (65 heaps scattered over the area of 750 km2) and on a small scale (25 plots along two 48 m transects extending from heaps to adjacent fallow fields...
#1Romena Sanglard Silveira (USP: University of São Paulo)
#2Bruno Alves Rocha (USP: University of São Paulo)H-Index: 12
Last.Fernando Barbosa (USP: University of São Paulo)H-Index: 40
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Abstract A high demand exists in human biomonitoring studies for reliable and straightforward methods that generate data faster and simultaneously. Thus, the present study combines microextraction by packed sorbent (MEPS) and liquid chromatography coupled to mass spectrometry (LC-MS/MS) for simultaneous extraction and determination of various classes of endocrine-disrupting chemicals (EDCs), including parabens, benzophenones, bisphenols, and the antimicrobial, triclocarban in human urine samples...
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