Investigating the feasibility of removing the rapid mixing unit in conventional surface water treatment and its effect on turbidity removal

Coagulation and flocculation processes play a major role in surface water treatment. The aim of this study was to eliminate the rapid mixing unit in the water treatment plant. This experimental study was conducted on turbid water. Turbid water was synthesized by kaolin powder. The conventional jar t...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Abolfazl Hessam, Mohammad Hadi Mehdinejad
Formato:	article
Lenguaje:	EN
Publicado:	IWA Publishing 2021
Materias:	coagulation coagulants jar test rapid mix unit turbidity Environmental technology. Sanitary engineering TD1-1066
Acceso en línea:	https://doaj.org/article/46bc55a25f22415697231cfea2880426
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:46bc55a25f22415697231cfea2880426
record_format	dspace
spelling	oai:doaj.org-article:46bc55a25f22415697231cfea28804262021-11-05T21:16:47ZInvestigating the feasibility of removing the rapid mixing unit in conventional surface water treatment and its effect on turbidity removal1751-231X10.2166/wpt.2021.070https://doaj.org/article/46bc55a25f22415697231cfea28804262021-10-01T00:00:00Zhttp://wpt.iwaponline.com/content/16/4/1173https://doaj.org/toc/1751-231XCoagulation and flocculation processes play a major role in surface water treatment. The aim of this study was to eliminate the rapid mixing unit in the water treatment plant. This experimental study was conducted on turbid water. Turbid water was synthesized by kaolin powder. The conventional jar test method was used. The flocculation and sedimentation processes were performed on the turbid water without a rapid mixing unit for getting the new optimal condition. When the PACl coagulant was used alone and in conjunction with chitosan, the percentages of turbidity removal in low, medium and high turbidities were obtained as 86.7%, 95.8%, 97.8% and 86.67%, 95.73%, 98.26%, respectively. When the rapid mixing unit was emitted, the efficiency of turbidity removal in the low turbidity was reduced from 5.26% to 21.73%. But, in higher turbidity in two states (presence and absence of the rapid mixing units) it did not have a significant difference. This study showed that the removal of the rapid mix unit on the removal efficiency of turbidity in the low turbidity is effective, but does not have an effect on higher turbid water. Also, using PACl in conjunction with chitosan was effective in the removal efficiency and to reduce residual aluminum. HIGHLIGHTS To decrease the cost of water treatment.; Changing the process related to coagulation and flocculation stages.; To decrease the time and the consumed coagulant.; To increase efficiency of turbidity removal.; Simplicity of process.;Abolfazl HessamMohammad Hadi MehdinejadIWA Publishingarticlecoagulationcoagulantsjar testrapid mix unitturbidityEnvironmental technology. Sanitary engineeringTD1-1066ENWater Practice and Technology, Vol 16, Iss 4, Pp 1173-1181 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	coagulation coagulants jar test rapid mix unit turbidity Environmental technology. Sanitary engineering TD1-1066
spellingShingle	coagulation coagulants jar test rapid mix unit turbidity Environmental technology. Sanitary engineering TD1-1066 Abolfazl Hessam Mohammad Hadi Mehdinejad Investigating the feasibility of removing the rapid mixing unit in conventional surface water treatment and its effect on turbidity removal
description	Coagulation and flocculation processes play a major role in surface water treatment. The aim of this study was to eliminate the rapid mixing unit in the water treatment plant. This experimental study was conducted on turbid water. Turbid water was synthesized by kaolin powder. The conventional jar test method was used. The flocculation and sedimentation processes were performed on the turbid water without a rapid mixing unit for getting the new optimal condition. When the PACl coagulant was used alone and in conjunction with chitosan, the percentages of turbidity removal in low, medium and high turbidities were obtained as 86.7%, 95.8%, 97.8% and 86.67%, 95.73%, 98.26%, respectively. When the rapid mixing unit was emitted, the efficiency of turbidity removal in the low turbidity was reduced from 5.26% to 21.73%. But, in higher turbidity in two states (presence and absence of the rapid mixing units) it did not have a significant difference. This study showed that the removal of the rapid mix unit on the removal efficiency of turbidity in the low turbidity is effective, but does not have an effect on higher turbid water. Also, using PACl in conjunction with chitosan was effective in the removal efficiency and to reduce residual aluminum. HIGHLIGHTS To decrease the cost of water treatment.; Changing the process related to coagulation and flocculation stages.; To decrease the time and the consumed coagulant.; To increase efficiency of turbidity removal.; Simplicity of process.;
format	article
author	Abolfazl Hessam Mohammad Hadi Mehdinejad
author_facet	Abolfazl Hessam Mohammad Hadi Mehdinejad
author_sort	Abolfazl Hessam
title	Investigating the feasibility of removing the rapid mixing unit in conventional surface water treatment and its effect on turbidity removal
title_short	Investigating the feasibility of removing the rapid mixing unit in conventional surface water treatment and its effect on turbidity removal
title_full	Investigating the feasibility of removing the rapid mixing unit in conventional surface water treatment and its effect on turbidity removal
title_fullStr	Investigating the feasibility of removing the rapid mixing unit in conventional surface water treatment and its effect on turbidity removal
title_full_unstemmed	Investigating the feasibility of removing the rapid mixing unit in conventional surface water treatment and its effect on turbidity removal
title_sort	investigating the feasibility of removing the rapid mixing unit in conventional surface water treatment and its effect on turbidity removal
publisher	IWA Publishing
publishDate	2021
url	https://doaj.org/article/46bc55a25f22415697231cfea2880426
work_keys_str_mv	AT abolfazlhessam investigatingthefeasibilityofremovingtherapidmixingunitinconventionalsurfacewatertreatmentanditseffectonturbidityremoval AT mohammadhadimehdinejad investigatingthefeasibilityofremovingtherapidmixingunitinconventionalsurfacewatertreatmentanditseffectonturbidityremoval
_version_	1718443975239532544

Investigating the feasibility of removing the rapid mixing unit in conventional surface water treatment and its effect on turbidity removal

Ejemplares similares