Optimization of coagulation–flocculation process for a paper-recycling wastewater treatment using response surface methodology

Wang, Jianping; Chen, Yongzhen; Ge, Xinlei; Yu, Han‐Qing

doi:10.1016/j.colsurfa.2007.02.023

Cited by 237 publications

(86 citation statements)

References 22 publications

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“…Hence, the response surface methodology (RSM) has been proposed to determine the influences of individual factors and their interactions. With RSM, the interactions of possible influencing factors on responses can be evaluated with a limited number of experimental runs (Wang et al, 2007). So, the objective of this study was to determine the optimal levels of N fertilizer, irrigation water and plant density in onion production based on the central composite design (CCD) experiments performed in Azarshahr County, East Azerbaijan Province, Iran.…”

Section: Introductionmentioning

confidence: 99%

Management of nitrogen fertilizer, irrigation and plant density in onion production using response surface methodology as optimization approach

Mansouri¹,

Bannayan²,

Moghaddam³

et al. 2014

Afr. J. Agric. Res.

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Section: Introductionmentioning

confidence: 99%

Management of nitrogen fertilizer, irrigation and plant density in onion production using response surface methodology as optimization approach

Mansouri¹,

Bannayan²,

Moghaddam³

et al. 2014

Afr. J. Agric. Res.

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“…Other factors which affect the efficiency of coagulation and hence need optimization are pH, mixing, temperature and retention time etc. (Wang et al 2007). …”

Section: Introductionmentioning

confidence: 99%

Coagulation of landfill leachate by FeCl3: process optimization using Box–Behnken design (RSM)

Kumar

Bishnoi

2015

Appl Water Sci

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FeCl 3 coagulation was used to achieve maximum reduction of COD, phosphate, sulfate and color and process optimization (FeCl 3 dosage, pH, reaction time) was done by BBD-RSM. Responses were recorded in terms of EC, COD, phosphate, color and sulfate removal. Variables A (pH) and B (reaction time) were negatively related to removal of COD and phosphate, whereas, C (FeCl 3 dosage) was positive in case of COD removal and negative for phosphate removal. pH and coagulant dosage had negative relationship with color removal; however, reaction time showed positive relationship. In case of percent sulfate removal, variable A (pH) demonstrated negative relationship whereas B (reaction time) and C (FeCl 3 dosage) were found to be positively related. Numerical optimization of the model revealed a maximum reduction of 71, 93, 86 and 99.6 % COD, phosphate, color and sulfate at optimal FeCl 3 dosage = 3 g/l, pH 8, and reaction time = 95 min.

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“…Factors such as pH, quality of raw effluent, nature of effluent and temperature influence coag-flocculation [6].…”

Section: Introductionmentioning

confidence: 99%

Post-treatment sludge analyses and purification of paint effluent by coag-flocculation method

Menkiti

Ezemagu

Nwoye

et al. 2015

Int J Energy Environ Eng

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Tympanotonos fuscatus shell (T. fuscatus shell), an abundant eco-friendly waste was used as a precursor for the production of Tympanotonos fuscatus coagulant (TFC) for the purification of paint effluent (PE). Tympanotonos fuscatus shells (TFS) are of crustacean origin consisting mainly of chitin, calcium carbonate, entrained protein and other organic matrixes. Influence of pH, dosage and settling time on treatment efficiency was studied. Scanning electron microscopic, Fourier transform infra red, X-ray diffraction and differential scanning calorimetric/thermogravimetric analyses were carried out to investigate, respectively, the surface morphology, functional group, crystalline/lattice structure and thermal stability of TFS, TFC and settled sludge after treatment. The PE was optimally treated at 2 g/L TFC dosage, pH 5 and 97 % efficiency. Results indicated that TFC could be an efficient treatment agent for PE at the conditions of the experiment. Concentration of turbidity at time t = 0 N t Concentration of turbidity at time

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Optimization of coagulation–flocculation process for a paper-recycling wastewater treatment using response surface methodology

Cited by 237 publications

References 22 publications

Management of nitrogen fertilizer, irrigation and plant density in onion production using response surface methodology as optimization approach

Management of nitrogen fertilizer, irrigation and plant density in onion production using response surface methodology as optimization approach

Coagulation of landfill leachate by FeCl3: process optimization using Box–Behnken design (RSM)

Post-treatment sludge analyses and purification of paint effluent by coag-flocculation method

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