Response surface methodology applied to tropical freshwater treatment

被引:11
作者
Arruda, Priscila Morgon [1 ]
Pereira-Filho, Edenir Rodrigues [2 ]
Libanio, Marcelo [3 ]
Fagnani, Enelton [1 ]
机构
[1] Univ Estadual Campinas, Sch Technol, Rua Paschoal Marmo 1888, BR-13484332 Limeira, SP, Brazil
[2] Univ Fed Sao Carlos, Dept Chem, Sao Carlos, Brazil
[3] Univ Fed Minas Gerais, Dept Hydraul Engn & Water Resources, Engn Coll, Belo Horizonte, MG, Brazil
基金
巴西圣保罗研究基金会;
关键词
Central composite design; drinking water treatment; jar test; optimization process; COAGULATION-FLOCCULATION PROCESS; POLYALUMINUM CHLORIDE; FLOC PROPERTIES; OPTIMIZATION; REMOVAL; PH; BEHAVIOR;
D O I
10.1080/09593330.2018.1514072
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
This paper presents the profits and disadvantages of the chemometrics approach instead of the one-factor-at-a-time (OFAT) coagulation diagram approach for tropical water physicochemical treatment. Central composite design associate to response surface methodology (CCD-RSM) is used to find the real best conditions for coagulant dosage and pH aiming at high-turbidity removal. The number of experiments needed to chemometrics model construction (12) is comparatively smaller than that used in the coagulation diagram (84), saving financial and environmental resources. Arguments for Water Treatment Plants (WTP) considering the replacement of coagulation diagram approach by the CCD-RSM approach in drinking water treatment are presented. Chemometrics models are all constructed on a free software platform, providing the best pH within the range 7.7-8.1, and the best coagulant dosage (polyaluminium chloride, PAC) between 2.0 and 3.1 mg Al2O3 L-1 (equivalent in mass). CCD-RSM provides a faster, lower-cost and more reliable alternative tool for WTP decision-making instead of the OFAT model, mainly for waters more affected by seasonal effects as can be seen in tropical and subtropical countries.
引用
收藏
页码:901 / 911
页数:11
相关论文
共 36 条
  • [1] [Anonymous], 2006, GREEN CHEM 10 COMMAN
  • [2] [Anonymous], 2018, Guidelines for Drinking Water Quality, DOI DOI 10.101651462-0758(00)00006-6
  • [3] [Anonymous], CONV TREATM
  • [4] Baghvand Akbar, 2010, American Journal of Environmental Sciences, V6, P442, DOI 10.3844/ajessp.2010.442.448
  • [5] Response surface methodology (RSM) as a tool for optimization in analytical chemistry
    Bezerra, Marcos Almeida
    Santelli, Ricardo Erthal
    Oliveira, Eliane Padua
    Villar, Leonardo Silveira
    Escaleira, Luciane Amlia
    [J]. TALANTA, 2008, 76 (05) : 965 - 977
  • [6] Effects of pH on coagulation behavior and floc properties in Yellow River water treatment using ferric based coagulants
    Cao BaiChuan
    Gao Baoyu
    Xu ChunHua
    Fu Ying
    Liu Xin
    [J]. CHINESE SCIENCE BULLETIN, 2010, 55 (14): : 1382 - 1387
  • [7] Coagulation performance and floc characteristics of polytitanium tetrachloride (PTC) compared with titanium tetrachloride (TiCl4) and ferric chloride (FeCl3) in algal turbid water
    Chekli, L.
    Eripret, C.
    Park, S. H.
    Tabatabai, S. A. A.
    Vronska, O.
    Tamburic, B.
    Kim, J. H.
    Shon, H. K.
    [J]. SEPARATION AND PURIFICATION TECHNOLOGY, 2017, 175 : 99 - 106
  • [8] Optimization of coagulation-flocculation process for treatment of a colloidal suspension containing dolomite/clay/borax
    Cirak, Mustafa
    Hosten, Cetin
    [J]. INTERNATIONAL JOURNAL OF MINERAL PROCESSING, 2017, 159 : 30 - 41
  • [9] Coagulation With Hydrolyzing Metal Salts: Mechanisms and Water Quality Impacts
    Davis, Christina C.
    Edwards, Marc
    [J]. CRITICAL REVIEWS IN ENVIRONMENTAL SCIENCE AND TECHNOLOGY, 2014, 44 (04) : 303 - 347
  • [10] Effects of Al species on coagulation efficiency, residual Al and floc properties in surface water treatment
    Duan Shu-xuan
    Xu Hui
    Xiao Feng
    Wang Dong-sheng
    Ye Chang-qing
    Jiao Ru-yuan
    Liu Yan-jing
    [J]. COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS, 2014, 459 : 14 - 21