Vegetable residueof Chayote (Sechium edule SW.) as natural coagulant for treatment of textile wastewater

Document Type: Original Article


1 Universidade Estadual de Maringá

2 Universidade Estadual de Maringá


In this study the vegetable residue of Chayote (Sechium edule SW.) has been evaluated as a potential natural coagulant for removing turbidity and chemical oxygen demand (COD) of textile wastewater. Three important factors for the coagulation/flocculation were optimized by response surface methodology (RSM) based on experimental design Box-Behnken. The maximum efficiency of coagulation/flocculation occurred in pH 6.14, FeCl3 dosage 47.40 mg/L and extract of vegetable residue of Chayote dosage 15.00 mg/L getting turbidity removal percentage and COD of 97.95% and 83.84% respectively. The characterization of the vegetable residue of Chayote by Fourier Transform Infrared Spectroscopy (FTIR) and Nuclear Magnetic Resonance of 13C in the solid state (13C NMR) indicated that the residue showed absorption bands and polysaccharides typical signs, distinctive in the case of anionic polyelectrolytes.
􀀬􀁑􀀃 􀁗􀁋􀁌􀁖􀀃 􀁖􀁗􀁘􀁇􀁜􀀃 􀁗􀁋􀁈􀀃 􀁙􀁈􀁊􀁈􀁗􀁄􀁅􀁏􀁈􀀃 􀁕􀁈􀁖􀁌􀁇􀁘􀁈􀀃 􀁒􀁉􀀃 􀀦􀁋􀁄􀁜􀁒􀁗􀁈􀀃 􀀋Sechium edule􀀃 􀀶􀀺􀀑􀀌􀀃 􀁋􀁄􀁖􀀃 􀁅􀁈􀁈􀁑􀀃 􀁈􀁙􀁄􀁏􀁘􀁄􀁗􀁈􀁇􀀃􀁄􀁖􀀃 􀁄􀀃 􀁓􀁒􀁗􀁈􀁑􀁗􀁌􀁄􀁏􀀃 􀁑􀁄􀁗􀁘􀁕􀁄􀁏􀀃 􀁆􀁒􀁄􀁊􀁘􀁏􀁄􀁑􀁗􀀃 􀁉􀁒􀁕􀀃 􀁕􀁈􀁐􀁒􀁙􀁌􀁑􀁊􀀃 􀁗􀁘􀁕􀁅􀁌􀁇􀁌􀁗􀁜􀀃 􀁄􀁑􀁇􀀃 􀁆􀁋􀁈􀁐􀁌􀁆􀁄􀁏􀀃 􀁒􀁛􀁜􀁊􀁈􀁑􀀃 􀁇􀁈􀁐􀁄􀁑􀁇􀀃 􀀋􀀦􀀲􀀧􀀌􀀃 􀁒􀁉􀀃 􀁗􀁈􀁛􀁗􀁌􀁏􀁈􀀃􀁚􀁄􀁖􀁗􀁈􀁚􀁄􀁗􀁈􀁕􀀑􀀃􀀷􀁋􀁕􀁈􀁈􀀃􀁌􀁐􀁓􀁒􀁕􀁗􀁄􀁑􀁗􀀃􀁉􀁄􀁆􀁗􀁒􀁕􀁖􀀃􀁉􀁒􀁕􀀃􀁗􀁋􀁈􀀃􀁆􀁒􀁄􀁊􀁘􀁏􀁄􀁗􀁌􀁒􀁑􀀒􀃀􀀃􀁒􀁆􀁆􀁘􀁏􀁄􀁗􀁌􀁒􀁑􀀃􀁚􀁈􀁕􀁈􀀃􀁒􀁓􀁗􀁌􀁐􀁌􀁝􀁈􀁇􀀃􀁅􀁜􀀃􀁕􀁈􀁖􀁓􀁒􀁑􀁖􀁈􀀃􀁖􀁘􀁕􀁉􀁄􀁆􀁈􀀃􀁐􀁈􀁗􀁋􀁒􀁇􀁒􀁏􀁒􀁊􀁜􀀃􀀋􀀵􀀶􀀰􀀌􀀃􀁅􀁄􀁖􀁈􀁇􀀃􀁒􀁑􀀃􀁈􀁛􀁓􀁈􀁕􀁌􀁐􀁈􀁑􀁗􀁄􀁏􀀃􀁇􀁈􀁖􀁌􀁊􀁑􀀃􀀥􀁒􀁛􀀐􀀥􀁈􀁋􀁑􀁎􀁈􀁑􀀑􀀃􀀷􀁋􀁈􀀃􀁐􀁄􀁛􀁌􀁐􀁘􀁐􀀃􀁈􀁉􀂿􀀃􀁆􀁌􀁈􀁑􀁆􀁜􀀃􀁒􀁉􀀃􀁆􀁒􀁄􀁊􀁘􀁏􀁄􀁗􀁌􀁒􀁑􀀒􀃀􀀃􀁒􀁆􀁆􀁘􀁏􀁄􀁗􀁌􀁒􀁑􀀃􀁒􀁆􀁆􀁘􀁕􀁕􀁈􀁇􀀃􀁌􀁑􀀃􀁓􀀫􀀃􀀙􀀑􀀔􀀗􀀏􀀃􀀩􀁈􀀦􀁏􀀖􀀃􀁇􀁒􀁖􀁄􀁊􀁈􀀃􀀗􀀚􀀑􀀗􀀓􀀃􀁐􀁊􀀒􀀯􀀃􀁄􀁑􀁇􀀃􀁈􀁛􀁗􀁕􀁄􀁆􀁗􀀃􀁒􀁉􀀃􀁙􀁈􀁊􀁈􀁗􀁄􀁅􀁏􀁈􀀃􀁕􀁈􀁖􀁌􀁇􀁘􀁈􀀃􀁒􀁉􀀃􀀦􀁋􀁄􀁜􀁒􀁗􀁈􀀃􀁇􀁒􀁖􀁄􀁊􀁈􀀃􀀔􀀘􀀑􀀓􀀓􀀃􀁐􀁊􀀒􀀯􀀃􀁊􀁈􀁗􀁗􀁌􀁑􀁊􀀃􀁗􀁘􀁕􀁅􀁌􀁇􀁌􀁗􀁜􀀃􀁕􀁈􀁐􀁒􀁙􀁄􀁏􀀃􀁓􀁈􀁕􀁆􀁈􀁑􀁗􀁄􀁊􀁈􀀃􀁄􀁑􀁇􀀃􀀦􀀲􀀧􀀃􀁒􀁉􀀃􀀜􀀚􀀑􀀜􀀘􀀈􀀃􀁄􀁑􀁇􀀃􀀛􀀖􀀑􀀛􀀗􀀈􀀃􀁕􀁈􀁖􀁓􀁈􀁆􀁗􀁌􀁙􀁈􀁏􀁜􀀑􀀃􀀷􀁋􀁈􀀃􀁆􀁋􀁄􀁕􀁄􀁆􀁗􀁈􀁕􀁌􀁝􀁄􀁗􀁌􀁒􀁑􀀃􀁒􀁉􀀃􀁗􀁋􀁈􀀃􀁙􀁈􀁊􀁈􀁗􀁄􀁅􀁏􀁈􀀃􀁕􀁈􀁖􀁌􀁇􀁘􀁈􀀃􀁒􀁉􀀃􀀦􀁋􀁄􀁜􀁒􀁗􀁈􀀃􀁅􀁜􀀃􀀩􀁒􀁘􀁕􀁌􀁈􀁕􀀃􀀷􀁕􀁄􀁑􀁖􀁉􀁒􀁕􀁐􀀃􀀬􀁑􀁉􀁕􀁄􀁕􀁈􀁇􀀃􀀶􀁓􀁈􀁆􀁗􀁕􀁒􀁖􀁆􀁒􀁓􀁜􀀃􀀋􀀩􀀷􀀬􀀵􀀌􀀃􀁄􀁑􀁇􀀃􀀱􀁘􀁆􀁏􀁈􀁄􀁕􀀃􀀰􀁄􀁊􀁑􀁈􀁗􀁌􀁆􀀃􀀵􀁈􀁖􀁒􀁑􀁄􀁑􀁆􀁈􀀃􀁒􀁉􀀃􀀔􀀖􀀦􀀃􀁌􀁑􀀃􀁗􀁋􀁈􀀃􀁖􀁒􀁏􀁌􀁇􀀃􀁖􀁗􀁄􀁗􀁈􀀃􀀋􀀔􀀖􀀦􀀃􀀱􀀰􀀵􀀌􀀃􀁌􀁑􀁇􀁌􀁆􀁄􀁗􀁈􀁇􀀃􀁗􀁋􀁄􀁗􀀃􀁗􀁋􀁈􀀃􀁕􀁈􀁖􀁌􀁇􀁘􀁈􀀃􀁖􀁋􀁒􀁚􀁈􀁇􀀃􀁄􀁅􀁖􀁒􀁕􀁓􀁗􀁌􀁒􀁑􀀃􀁅􀁄􀁑􀁇􀁖􀀃􀁄􀁑􀁇􀀃􀁓􀁒􀁏􀁜􀁖􀁄􀁆􀁆􀁋􀁄􀁕􀁌􀁇􀁈􀁖􀀃􀁗􀁜􀁓􀁌􀁆􀁄􀁏􀀃􀁖􀁌􀁊􀁑􀁖􀀏􀀃􀁇􀁌􀁖􀁗􀁌􀁑􀁆􀁗􀁌􀁙􀁈􀀃􀁌􀁑􀀃􀁗􀁋􀁈􀀃􀁆􀁄􀁖􀁈􀀃􀁒􀁉􀀃􀁄􀁑􀁌􀁒􀁑􀁌􀁆􀀃􀁓􀁒􀁏􀁜􀁈􀁏􀁈􀁆􀁗􀁕􀁒􀁏􀁜􀁗􀁈􀁖􀀑


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