Efficient removal of emerging contaminant sulfamethoxazole in water by ozone coupled with calcium peroxide: mechanism and toxicity assessment

Chemosphere ◽  
2021 ◽  
pp. 131156
Author(s):  
Liangrui Xiang ◽  
Zhehao Xie ◽  
He Guo ◽  
Jiaxi Song ◽  
Dongsheng Li ◽  
...  
Keyword(s):  
Toxicity Assessment ◽  
Emerging Contaminant ◽  
Efficient Removal ◽  
Calcium Peroxide

Synthesis of Calcium Peroxide Microparticles in Aqueous at Room Temperature and its Application in Heavy Metal Ions Removal from Waste Liquid of COD Determining

2013 ◽  
Vol 864-867 ◽  
pp. 648-653
Author(s):  
Jian Zhai ◽  
Chun Hua Jiang
Keyword(s):  
Heavy Metal ◽  
Reaction Time ◽  
Removal Efficiency ◽  
Contact Time ◽  
Heavy Metal Ions ◽  
Room Temperature ◽  
Efficient Removal ◽  
Calcium Peroxide ◽  
Heavy Metal Ions Removal ◽  
Metal Ions Removal

The calcium peroxide microparticles were synthesized and evaluated as an innovative oxidant to remove Fe (III) and Cr (III) from waste liquid of COD determining samples. The CaO2 microparticles were 0.1-0.3 μm in diameter and the average CaO2 content was 80%. Experiments were performed to investigate the influence of contact time, pH of solution and CaO2 microparticles dosage on the efficiency of Fe (III) and Cr (III) removal. Up to 100.0% and 99.8% removal efficiency for Fe (III) and Cr (III) respectively was obtained by microparticles dosage of 10000 mg/L at 30 min and pH 7.46. It could be concluded that the removal efficiency was enhanced by increasing CaO2 microparticles dosage and reaction time, but decreased by increasing pH. These results suggest that CaO2 microparticles may be used to develop a simple and efficient removal method for waste liquid of COD determining samples.

Effect of carbofuran on quantitative and qualitative alterations in haemolymph of larva of Oryctes rhinoceros L. (Coleoptera: Scarabaeidae)

ENTOMON ◽  
2020 ◽  
Vol 44 (4) ◽  
pp. 293-300
Author(s):  
V.S. Salini
Keyword(s):  
Oral Route ◽  
Toxicity Assessment ◽  
Haematological Parameters ◽  
Oryctes Rhinoceros ◽  
Total Haemocyte Count ◽  
Differential Haemocyte Count ◽  
Third Instar Larvae

Investigation to evaluate the toxicity of carbofuran pesticides on haematological parameters of third instar larvae of Oryctes rhinoceros L. Indicated alterations in total haemocyte count and differential haemocyte count for toxicity assessment. Various doses of carbofuran (0.05g, 0.010g and 0.015 g) applied on insect through oral route and its impact after 24 hours of its application revealed that various doses of carbofuran exert specific alterations in both total and differential haemocytes of insect haemolymph.

AN NOVEL UCSB-ANR INTEGRATED SYSTEM FOR EFFICIENT REMOVAL OF ORGANIC MATTER AND AMMONIA NITROGEN FROM SWINE WASTEWATER

2016 ◽  
Vol 15 (10) ◽  
pp. 2261-2266
Author(s):  
Xiaowei Li ◽  
Jie Zhang ◽  
Weiwei Zhao ◽  
Xuewen Yi ◽  
Wei Lin ◽  
...  
Keyword(s):  
Organic Matter ◽  
Ammonia Nitrogen ◽  
Integrated System ◽  
Swine Wastewater ◽  
Efficient Removal

Studying dispersed and rheological properties of hydrocarbon-containing acid emulsions and their efficiency in removing asphalt-resin-paraffin deposits

2020 ◽  
pp. 128-139
Author(s):  
M. Yu. Shumakher ◽  
V. V. Konovalov ◽  
A. P. Melnikov
Keyword(s):  
Aqueous Solution ◽  
Hydrochloric Acid ◽  
Rheological Properties ◽  
Reaction Rate ◽  
Experimental Studies ◽  
Efficient Removal ◽  
Reservoir Properties ◽  
Hydrocarbon Solvents ◽  
Formation Zone ◽  
Effect Of The Composition

Currently, the treatment of the bottomhole formation zone with acidic compositions is one of the most common methods to intensify the oil inflow. The use of various modified acid compositions increases the efficiency of acid treatments on the bottomhole formation zone. Acid compositions, including those containing hydrocarbon solvents, which contribute to more efficient removal of organic colmatants, affect the reaction rate of the reagent with the rock and processing equipment, change the reservoir properties, etc.The article presents the results of experimental studies, which are aimed at establishing the effect of the composition of hydrocarbon-containing acidic emulsions consisting of an aqueous solution of hydrochloric acid, toluene and Neonol AF 9-10 on their dispersed and rheological properties, as well as their efficiency in removing paraffin deposits.

Decolorization, Degradation and Subsequent Toxicity Assessment of Reactive Red 35 by Enterococcus gallinarum

2016 ◽  
Vol 5 (4) ◽  
pp. 325-336 ◽  
Author(s):  
Rakesh Soni ◽  
N.S. Bhatt ◽  
H.A. Modi ◽  
P.B. Acharya
Keyword(s):  
Toxicity Assessment ◽  
Enterococcus Gallinarum
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