One-Step Fabrication of Novel Ultra Porous Mn2O3-Fe2O3 @ SiO2: A Versatile Material for Removal of Organic Pollutants from Industrial Wastewater at Neutral pH

2021 ◽  
pp. 120259
Author(s):  
Yasaman Ghaffari ◽  
Soyoung Beak ◽  
Jiyeol Bae ◽  
Suho Kim ◽  
Md Saifuddin ◽  
...  
Keyword(s):  
Organic Pollutants ◽  
Industrial Wastewater ◽  
Neutral Ph ◽  
One Step

One-step hydrothermal preparation of highly stable N doped oxidized carbon dots for toxic organic pollutants sensing and bioimaging

2020 ◽  
Vol 401 ◽  
pp. 126097 ◽  
Author(s):  
Naveen Kumar Reddy Bogireddy ◽  
Joel Lara ◽  
Lourdes Rodriguez Fragoso ◽  
Vivechana Agarwal
Keyword(s):  
Organic Pollutants ◽  
Carbon Dots ◽  
Hydrothermal Preparation ◽  
Oxidized Carbon ◽  
One Step

Electro-assisted sulfite activation by a silica supported cobalt catalyst for the degradation of organic pollutants in near-neutral pH condition

2020 ◽  
Vol 402 ◽  
pp. 126168
Author(s):  
Wei Ding ◽  
Weilong Xiao ◽  
Huaili Zheng ◽  
Shixin Zhang ◽  
Hongxia Liu ◽  
...  
Keyword(s):  
Organic Pollutants ◽  
Cobalt Catalyst ◽  
Neutral Ph

Pretreatment of wastewater containing a mixture of organic pollutants obtained from a CC2 plant by coagulation

2008 ◽  
Vol 58 (5) ◽  
pp. 1071-1077
Author(s):  
Bidhan C. Bag ◽  
Makireddi Sai ◽  
Mahavir P. Kaushik ◽  
Krishnamurthy Sekhar ◽  
Chiranjib Bahttacharya
Keyword(s):  
Acetic Acid ◽  
Organic Pollutants ◽  
Aromatic Compounds ◽  
Carboxymethyl Cellulose ◽  
Industrial Wastewater ◽  
Suspended Solids ◽  
Oxygen Demand ◽  
Total Suspended Solids ◽  
Manufacturing Plant ◽  
Colloidal Materials

Coagulation is one of the most important physicochemical treatment steps in industrial wastewater to reduce the suspended and colloidal materials responsible for colour and turbidity of the wastewater. The manufacturing plant of N,N′-Dichloro bis (2,4,6-trichlorophenyl) urea (CC2) produces wastewater containing pyridine, acetic acid and diphenyl urea (DPU). The wastewater also contains lot of suspended solids like CC2 and various poly-aromatic compounds. In our present investigation, our basic aim was to find an effective coagulation process for the pretreatment of wastewater discharged from the CC2 plant. Studies were conducted to find out a suitable and effective coagulant for pretreatment of this wastewater. Various coagulating agents such as alum, ferric chloride, sodium carboxymethyl cellulose (Na-CMC) were used. Alum was found to be the most effective coagulant. Coagulation of the wastewater resulted in the total suspended solids (TSS) removal in the range of 92–94% and chemical oxygen demand (COD) removal in the range of 59 to 65% at a dose of 500 mg L−1 of alum at a pH ≥ 7.0. After coagulation the concentration of pyridine in wastewater was found to be reduced by 10.0% and that of DPU 40–45% with a dosage of 500 mg L−1 alum.

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