References
  -  M.R. Tabassum, A. Xia, J.D. Murphy, Biomethane production
    from various segments of brown seaweed, Energy Convers.
    Manage., 174 (2018) 855–862. 
-  Y.L. Le Hana, Jia Wei Chew, Boron transfer during desalination
    by electrodialysis, J. Membr. Sci., 547 (2018) 64–72. 
-  T.A. Roseline, M. Murugan, M.P. Sudhakar, K. Arunkumar,
    Nanopesticidal potential of silver nanocomposites synthesized
    from the aqueous extracts of red seaweeds, Environ. Technol.
    Inno., 13 (2019) 82–93. 
-  K. Chen, M. Roca, Cooking effects on chlorophyll profile of the
    main edible seaweeds, Food Chem., 266 (2018) 368–374. 
-  S. Paz, C. Rubio, I. Frias, A.J. Gutierrez, D. Gonzalez-Weller,
    V. Martin, C. Revert, A. Hardisson, Toxic metals (Al, Cd, Pb
    and Hg) in the most consumed edible seaweeds in Europe,
    Chemosphere, 218 (2019) 879–884. 
-  A.C. Leri, M.R. Dunigan, R.L. Wenrich, B. Ravel, Particulate
    organohalogens in edible brown seaweeds, Food Chem.,
    272 (2019) 126–132. 
-  D. Battacharyya, M.Z. Babgohari, P. Rathor, B. Prithiviraj,
    Seaweed extracts as biostimulants in horticulture, Sci. Hortic.-
    Amsterdam, 196 (2015) 39–48. 
-  A.G. La Macchia Pedra, F. Ramlov, M. Maraschin, L. Hayashi,
    Cultivation of the red seaweed Kappaphycus alvarezii with
    effluents from shrimp cultivation and brown seaweed extract:
    effects on growth and secondary metabolism, Aquaculture,
    479 (2017) 297–303. 
-  J. Jiang, S. Shi, Seaweeds and Cancer Prevention, 2018,
    pp. 269–290. 
-  K.D. Bastami, M.R. Neyestani, F. Shemirani, F. Soltani,
    S. Haghparast, A. Akbari, Heavy metal pollution assessment
    in relation to sediment properties in the coastal sediments of
    the southern Caspian Sea, Mar. Pollut. Bull., 92 (2015) 237–243. 
-  A.D. Davis, C.J. Webb, J.L. Sorensen, D.J. Dixon, R. Hudson,
    Geochemical thermodynamics of lead removal from water with
    limestone, Water Air Soil Pollut., 229 (2018) 177. 
-  A.J. Hargreaves, P. Vale, J. Whelan, L. Alibardi, C. Constantino,
    G. Dotro, E. Cartmell, P. Campo, Impacts of coagulationflocculation
    treatment on the size distribution and bioavailability
    of trace metals (Cu, Pb, Ni, Zn) in municipal wastewater, Water
    Res., 128 (2018) 120–128. 
-  Y. Wu, M. Xu, J. Xue, K. Shi, M. Gu, Characterization and
    enhanced degradation potentials of biosurfactant-producing
    bacteria isolated from a marine environment, ACS Omega,
    4 (2019) 1645–1651. 
-  A.A. Khan, U. Baig, Electrically conductive membrane of
    polyaniline–titanium(IV)phosphate cation exchange nanocomposite:
    applicable for detection of Pb(II) using its ion-selective
    electrode, J. Ind. Eng. Chem., 18 (2012) 1937–1944. 
-  N.A.H.M. Zaidi, L.B.L. Lim, A. Usman, Enhancing adsorption
    of Pb(II) from aqueous solution by NaOH and EDTA modified
    Artocarpus odoratissimus leaves, J. Environ. Chem. Eng., 6 (2018)
    7172–7184. 
-  J. Xue, Y. Wu, K. Shi, X. Xiao, Y. Gao, L. Li, Y. Qiao, Study on
    the degradation performance and kinetics of immobilized cells
    in straw-alginate beads in marine environment, Bioresour.
    Technol., 280 (2019) 88–94. 
-  M.J. Aghagoli, F. Shemirani, Hybrid nanosheets composed
    of molybdenum disulfide and reduced graphene oxide for
    enhanced solid phase extraction of Pb(II) and Ni(II), Microchim.
    Acta, 184 (2016) 237–244. 
-  P. Pal, S.S. Syed, F. Banat, Gelatin-bentonite composite as
    reusable adsorbent for the removal of lead from aqueous
    solutions: Kinetic and equilibrium studies, J. Water Process
    Eng., 20 (2017) 40–50. 
-  S. Bao, K. Li, P. Ning, J. Peng, X. Jin, L. Tang, Highly effective
    removal of mercury and lead ions from wastewater by
    mercaptoamine-functionalised silica-coated magnetic nanoadsorbents:
    behaviours and mechanisms, Appl. Surf. Sci.,
    393 (2017) 457–466. 
-  A. Rabii, G.N. Bidhendi, N. Mehrdadi, Evaluation of lead and
    COD removal from lead octoate drier effluent by chemical
    precipitation, coagulation–flocculation, and potassium persulfate
    oxidation processes, Desal. Wat. Treat., 43 (2012) 1–7. 
-  J. Feng, Z. Yang, G. Zeng, J. Huang, H. Xu, Y. Zhang, S. Wei,
    L. Wang, The adsorption behavior and mechanism investigation
    of Pb(II) removal by flocculation using microbial flocculant
    GA1, Bioresour. Technol.. 148 (2013) 414–421. 
-  A. Assadi, M.M. Fazli, M.M. Emamjomeh, M. Ghasemi,
    Optimization of lead removal by electrocoagulation from
    aqueous solution using response surface methodology, Desal.
    Wat. Treat., 57 (2015) 9375–9382. 
-  E. Pehlivan, T. Altun, Ion-exchange of Pb2+, Cu2+, Zn2+, Cd2+, and
    Ni2+ ions from aqueous solution by Lewatit CNP 80, J. Hazard.
    Mater., 140 (2007) 299–307. 
-  C.-V. Gherasim, J. Křivčík, P. Mikulášek, Investigation of batch
    electrodialysis process for removal of lead ions from aqueous
    solutions, Chem. Eng. J., 256 (2014) 324–334. 
-  R. Lafi, L. Gzara, R.H. Lajimi, A. Hafiane, Treatment of textile
    wastewater by a hybrid ultrafiltration/electrodialysis process,
    Chem. Eng. Process., 132 (2018) 105–113. 
-  Z. Ma, T. Lei, X. Ji, X. Gao, C. Gao, Submerged membrane
    bioreactor for vegetable oil wastewater treatment, Chem. Eng.
    Technol., 38 (2015) 101–109. 
-  J.S. Ho, Z. Ma, J. Qin, S.H. Sim, C.-S. Toh, Inline coagulation–ultrafiltration as the pretreatment for reverse osmosis brine
    treatment and recovery, Desalination, 365 (2015) 242–249. 
-  Z. Li, Z. Ma, Y. Xu, X. Wang, Y. Sun, R. Wang, J. Wang, X. Gao,
    J. Gao, Developing homogeneous ion exchange membranes
    derived from sulfonated polyethersulfone/N-phthaloyl-chitosan
    for improved hydrophilic and controllable porosity, Korean J.
    Chem. Eng., 35 (2018) 1716–1725. 
-  Y. Wang, C. Huang, T. Xu, Optimization of electrodialysis with
    bipolar membranes by using response surface methodology,
    J. Membr. Sci., 362 (2010) 249–254. 
-  A. Maher, M. Sadeghi, A. Moheb, Heavy metal elimination from
    drinking water using nanofiltration membrane technology and
    process optimization using response surface methodology,
    Desalination, 352 (2014) 166–173. 
-  H. Attia, S. Alexander, C.J. Wright, N. Hilal, Superhydrophobic
    electrospun membrane for heavy metals removal by air gap
    membrane distillation (AGMD), Desalination, 420 (2017) 318–329. 
-  S. Koushkbaghi, A. Zakialamdari, M. Pishnamazi, H.F. Ramandi,
	  M. Aliabadi, M. Irani, Aminated-Fe3O4 nanoparticles filled
    chitosan/PVA/PES dual layers nanofibrous membrane for the
    removal of Cr(VI) and Pb(II) ions from aqueous solutions in
    adsorption and membrane processes, Chem. Eng. J., 337 (2018)
    169–182. 
-  D. Liu, G. Gu, B. Wu, C. Wang, X. Chen, Degradation of
    isopropyl ethylthionocarbamate from aqueous solution by
    Fenton oxidation: RSM optimization, mechanisms, and kinetic
    analysis, Desal. Wat. Treat., 130 (2018) 87–97. 
-  H. Alidadi, A. Ghorbanian, M. Ghorbanian, E. Rahmanzadeh,
    N. Nemanifar, M. Mehrabpour, Evaluation of amoxicillin
    antibiotic removal by electrocoagulation process from aqueous
    solutions: optimization through response surface methodology,
    Desal. Wat. Treat., 132 (2018) 350–358. 
-  A.R. Rahmani, A. Shabanloo, M. Fazlzadeh, Y. Poureshgh,
    M. Vanaeitabar, Optimization of sonochemical decomposition
    of ciprofloxacin antibiotic in US/PS/nZVI process by CCD-RSM
    method, Desal. Wat. Treat., 145 (2019) 300–308. 
-  F. Mohammadi, F. Mohammadi, A. Esrafili, H.R. Sobhi,
    M. Behbahani, M. Kermani, E. Asgari, Z.R. Fasih, Evaluation
    of adsorption and removal of methylparaben from aqueous
    solutions using amino-functionalized magnetic nanoparticles
    as an efficient adsorbent: Optimization and modeling by
    response surface methodology (RSM), Desal. Wat. Treat.,
    103 (2018) 248–260. 
-  X. Deng, H. Zhou, X.-N. Qu, J. Long, P.-Q. Peng, H.-B. Hou,
    K.-L. Li, P. Zhang, B.-H. Liao, Optimization of Cd(II) removal
    from aqueous solution with modified corn straw biochar using
    Placket-Burman design and response surface methodology,
    Desal. Wat. Treat., 70 (2017) 210–219. 
-  X. Wang, N. Li, J. Li, J. Feng, Z. Ma, Y. Xu, Y. Sun, D. Xu, J. Wang,
    X. Gao, J. Gao, Fluoride removal from secondary effluent
    of the graphite industry using electrodialysis: optimization
    with response surface methodology, Front. Environ. Sci. Eng.,
    13 (2019) 51. 
-  P. Bhunia, S. Chatterjee, P. Rudra, S. De, Chelating polyacrylonitrile
    beads for removal of lead and cadmium from
    wastewater, Sep. Purif. Technol., 193 (2018) 202–213. 
-  Y. Guo, C. Wu, Q. Wang, M. Yang, Q. Huang, M. Magep,
    T. Zheng, Wastewater-nitrogen removal using polylactic acid/starch as carbon source: optimization of operating parameters
    using response surface methodology, Front. Environ. Sci. Eng.,
    10 (2016) 6. 
-  B.-H. Zhao, J. Chen, H.-Q. Yu, Z.-H. Hu, Z.-B. Yue, J. Li,
    Optimization of microwave pretreatment of lignocellulosic
    waste for enhancing methane production: hyacinth as an
    example, Front. Environ. Sci. Eng., 11 (2017) 17. 
-  N. Song, X. Gao, Z. Ma, X. Wang, Y. Wei, C. Gao, A review
    of graphene-based separation membrane: materials, characteristics,
    preparation and applications, Desalination, 437 (2018)
    59–72. 
-  Z.D.I. Sktani, N.A. Rejab, M.M. Ratnam, Z.A. Ahmad,
    Fabrication of tougher ZTA ceramics with sustainable high
    hardness through (RSM) optimisation, Int. J. Refract. Met. Hard
    Mater., 74 (2018) 78–86. 
-  Y. Chan, M. Chong, C. Law, Optimization of thermophilic
    anaerobic-aerobic treatment system for Palm Oil Mill Effluent
    (POME), Front. Environ. Sci. Eng., 9 (2014) 334–351. 
-  K. Yetilmezsoy, S. Demirel, R.J. Vanderbei, Response surface
    modeling of Pb(II) removal from aqueous solution by Pistacia
    vera L.: Box-Behnken experimental design, J. Hazard. Mater.,
	  171 (2009) 551–562.