Interaction between organic matter and tetracycline in river sediments in cold regions

Environmental Science and Pollution Research - In this study, the interaction between river sediments collected from cold regions and typical antibiotics was investigated. The results show that...     

Electrochemical and optical sensors made of composites of metal–organic frameworks and carbon-based materials. A review

Environmental Chemistry Letters - Rapid and selective sensing of biological substances and pollutants is developing rapidly in medicine and environmental sciences. Sensing performance depends on...     

Exposure Assessment of methyl mercury from consumption of fish and seafood in Peninsular Malaysia

Environmental Science and Pollution Research - The concentration of meHg in freshwater fish and seafood was investigated, as well as the consumption patterns of fish and seafood by different...     

水中重金属锑在线自动监测技术在湘江上游典型区域水环境预警中的应用

锑（Sb）是湘江上游部分区域的特征重金属污染因子，为精准助力Sb污染预警与防控，基于2-（5-溴-2-吡啶偶氮）-5-二乙氨基酚（5-Br-PADAP）分光光度法，采用优化的在线自动监测仪自动测定地表水中的Sb。测定结果表明，测试范围为0～0.10 mg/L，检出限≤1 μg/L，相对误差≤±10%，相对标准偏差≤5%，实际水样加标回收率范围为88.2% ～104%。该方法适用于地表水中Sb的自动在线监测，可为环境管理部门对水中Sb等重金属的污染预警、溯源、防控等环境决策提供准确依据。     

Stability properties of natural estrogen conjugates in different aqueous samples at room temperature and tips for sample storage

Environmental Science and Pollution Research - It is important to keep natural estrogen conjugates (C-NEs) intact in aqueous environmental sample before sample preparation; otherwise, this may...     

Synergistic adsorption and advanced oxidation activated by persulfate for degradation of tetracycline hydrochloride using iron-modified spent bleaching earth carbon

At present, tetracycline hydrochloride (TCH) is a widely used antibiotic, and is often detected in water, posing a serious harm to human and ecological health. In this study, spent bleaching earth (SBE) was pyrolyzed to obtain spent bleaching earth carbon (SBE@C) and the nano Fe⁰/SBE@C prepared after zero-valent iron loading was adopted to remove TCH in water for the first time. The combination of nano Fe⁰/SBE@C and PS, the strong adsorption of SBE@C coupled with the oxidation of free radicals could achieve TCH efficient removal. The effects of nano Fe⁰ load, nano Fe⁰/SBE@C dosage, solution initial pH, and PS/TCH molar ratio on TCH removal efficiency in nano Fe⁰/SBE@C?+?PS system were studied. The results indicate that the optimal reaction conditions are 5% nano Fe⁰ load, 0.2 g/L nano Fe⁰/SBE@C dosage, initial pH of 3, PS/TCH molar ratio of 100:1. Under these conditions, TCH removal efficiency could reach 91%. Meanwhile, response surface methodology (RSM) was applied to predict optimal value of reaction conditions. The removal efficiency corresponding to the predicted optimal conditions was consistent with the actual removal efficiency obtained from the experiment. Moreover, six reaction systems were tested, and TCH removal efficiency in the SBE@C?+?PS system was 22.6%. When nano Fe⁰ was loaded on SBE@C, TCH removal efficiency in Fe⁰/SBE@C?+?PS system increased to 78.2%, in which TCH was first adsorbed on the surface of nano Fe⁰/SBE@C, and then was degraded by the oxidation of SO₄^?? and ?OH. Totally, the nano Fe⁰/SBE@C?+?PS system displayed excellent TCH removal efficiency, good stability and reusability, exhibiting a promise toward TCH removal.

     

Exploring new ideas for sustainable development of urban agglomerations-based on the coupling of people’s livelihood and environmental governance

Environment, Development and Sustainability - Peoples’ livelihood and environmental governance are interrelated and interact with each other, which is a new starting point for the study of...