Textile wastewater treatment by using cement kiln dust and biochar filters

2018 ◽  
Vol 120 ◽  
pp. 180-184
Author(s):  
Kasem Mahmoud Esawy
Keyword(s):  
Wastewater Treatment ◽  
Textile Wastewater ◽  
Cement Kiln Dust ◽  
Cement Kiln ◽  
Textile Wastewater Treatment ◽  
Kiln Dust

scholarly journals Cement kiln dust as an alternative technique for wastewater treatment

2021 ◽  
Author(s):  
Amany F. Hasaballah ◽  
T.A. Hegazy ◽  
M.S. Ibrahim ◽  
Doaa A. El-Emam
Keyword(s):  
Wastewater Treatment ◽  
Cement Kiln Dust ◽  
Cement Kiln ◽  
Alternative Technique ◽  
Kiln Dust

Effects of Cement Kiln Dust on pH and Phosphorus Concentrations in an Activated Sludge Wastewater Treatment System

2000 ◽  
Vol 35 (2) ◽  
pp. 299-311 ◽  
Author(s):  
Moya L. Smith ◽  
Christine E. Campbell
Keyword(s):  
Wastewater Treatment ◽  
Activated Sludge ◽  
Soluble Reactive Phosphorus ◽  
Treatment System ◽  
Cement Kiln Dust ◽  
Cement Kiln ◽  
Treated Effluent ◽  
Wastewater Treatment Effluent ◽  
Ph Buffer ◽  
Kiln Dust

Abstract Cement kiln dust (CKD), the waste dust generated from a Portland cement kiln, was evaluated for its ability to increase the pH of acidic processed effluent in activated sludge wastewater treatment. Effluent samples were obtained from Corner Brook Pulp and Paper in Newfoundland, which currently uses NaOH as a pH buffer in its treatment system. Three separate effluent samples were tested. On average, 12.8 mL of a CKD neutralizing solution (0.4625 g CKD/L distilled water) raised the pH of 100 mL of effluent from pH 6.4—7.0 to pH 8.0. There was no significant problem with excess sedimentation at pH 8.0 and 9.0. However, there was a significant decrease in soluble reactive phosphorus (SRP-P) concentrations, probably through precipitation of calcium phosphate, resulting in a mean loss of 84.7 µg SRP-P per litre of CKD-treated effluent. The use of CKD as a neutralizing agent may be economically feasible, since the costs of adding increased phosphorus as nutrient were less than the costs associated with adding NaOH. Further experimentation needs to be done to determine the efficacy of CKD on a larger scale.

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