نتایج جستجو برای: purification of wastewater
تعداد نتایج: 21170816 فیلتر نتایج به سال:
In recent years, photocatalytico oxidation processes with ultra violet (UV) radiation and semiconductor photocatalyst like titanium dioxide (TiO2) and zinc oxide (ZnO) have gained immense research interest as an effective wastewater purification method because of its efficacy in decomposing and mineralising the hazardous organic pollutants as well as the opportunity of utilizing the solar UV an...
The co-existence of free and conjugated estrogens and the interference from complex matrices often lead to largely variable detected concentrations and sometimes even negative removal efficiencies of typical endocrine disrupting chemicals (EDCs) in wastewater treatment plants (WWTPs). In this study, a highly selective and sensitive method was developed for simultaneous extraction, elution, and ...
Wastewater generated by the textile industry has been a major environmental concern for long. Production of fiber involves various steps and uses lot chemicals, dyes, water. Therefore, effluent produced from needs proper purification before discharging into water body. The current review summarizes physical chemical methods like ion exchange, coagulation-flocculation, membrane separation, disti...
The efficiency of microbial inactivation in water is highly dependent on the type treatment technology used as well characteristics to be treated. Wastewater from poultry slaughterhouses carries a significant number microorganisms posing threats humans and environment general. Therefore, slaughterhouse wastewater requires use appropriate purification systems with high removal for agents. In thi...
This research compares the performance of floating systems planted with Vetiveria zizanioides as a hydroponic approach for removing nutrients from two contaminated waters. For this purpose, two pilots with overall net volume of 60 litres were constructed and inoculated by secondary treated domestic wastewater (STDW) and irrigation water obtained from Minab reservoir (IWMR) in batch mode. Regard...
Abstract To address the efficient resourcefulness of papermaking wastewater, this study designed a super-efficient gel material (SGPQG/SGPQ) that could remove over-10-times masses lignins from and subsequently realized highly-efficient reuse wastes. The mass lignin removed by per unit SGPQG/SGPQ was 10,157.71 mg•g -1 , i.e., 10.16 times itself, which 1.23-50.55 better than existing similar mate...
Background and Objectives: Epidemics of diarrhea caused by contaminated food and water occur frequently worldwide, especially in developing countries. The aim of this study was to identify the factors contributing to the development and spread of diarrhea epidemics caused by Shigella flexneri in Isfahan in the spring of 2015. Methods: Following the first reports and activation of the surv...
Electrocatalysis offers great promise for water purification but is limited by low active area and high uncontrollability of electrocatalysts. To overcome these constraints, we propose hybrid bulk electrodes synthesizing binding a Pd nanocatalyst (nano-Pd) to the via amyloid fibrils (AFs). The AFs template effective controlling nucleation, growth, assembly nano-Pd on electrode. In addition, thr...
The northwest of China has a shortage water resources, and classic sewage treatment techniques have high cost produce waste nitrogen phosphorus. In order to achieve inexpensive discharge standards, an anaerobic biofilm coupled with ABR technology was adopted as for normal rural wastewater in the arid semi-arid vicinity Northwest investigate its operational impact on China’s domestic wastewater....
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