A comparative study on the treatment of gelatin production plant wastewater using electrocoagulation and chemical coagulation

Effluents from gelatin production plants are highly complex and difficult to treat by conventional methods. The Electrocoagulation (EC) technique was evaluated to treat effluents that contain a heavy load of Chemical Oxygen Demand (COD) and a large quantity of suspended solids. This paper presents r...

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Autores principales: Arturi, Tatiana Sonia, Seijas, Carlos Javier, Bianchi, Gustavo Luis
Formato: Articulo
Lenguaje:Inglés
Publicado: 2019
Materias:
Ingeniería Química
Chemical engineering
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/128500
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-128500
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ingeniería Química
Chemical engineering
spellingShingle Ingeniería Química
Chemical engineering
Arturi, Tatiana Sonia
Seijas, Carlos Javier
Bianchi, Gustavo Luis
A comparative study on the treatment of gelatin production plant wastewater using electrocoagulation and chemical coagulation
topic_facet Ingeniería Química
Chemical engineering
description Effluents from gelatin production plants are highly complex and difficult to treat by conventional methods. The Electrocoagulation (EC) technique was evaluated to treat effluents that contain a heavy load of Chemical Oxygen Demand (COD) and a large quantity of suspended solids. This paper presents results of laboratory scale studies that compare the performance of Chemical Coagulation (CC) with aluminum salts and EC with aluminum electrodes. The heavy organic load and suspended solids in this kind of wastewater lead to low performance in the secondary treatment. SEM-EDS were used to analyze the sludge formed in the EC process and the removal mechanism of pollutants from the wastewater. The structure and composition of the precipitates at different operation conditions, such as pH, show that EC has increased efficiency of COD removal, compared to CC with the same dose of aluminum (Al+3) as coagulant. The efficiency of COD removal was 73.6% with EC and 55.6% with CC. The in-situ formation of zeolites in the EC process explains the high efficiency of this treatment compared to the CC process. The zeolite formation during the EC process in the wastewater of the gelatin production plant has not been reported until now.
format Articulo
Articulo
author Arturi, Tatiana Sonia
Seijas, Carlos Javier
Bianchi, Gustavo Luis
author_facet Arturi, Tatiana Sonia
Seijas, Carlos Javier
Bianchi, Gustavo Luis
author_sort Arturi, Tatiana Sonia
title A comparative study on the treatment of gelatin production plant wastewater using electrocoagulation and chemical coagulation
title_short A comparative study on the treatment of gelatin production plant wastewater using electrocoagulation and chemical coagulation
title_full A comparative study on the treatment of gelatin production plant wastewater using electrocoagulation and chemical coagulation
title_fullStr A comparative study on the treatment of gelatin production plant wastewater using electrocoagulation and chemical coagulation
title_full_unstemmed A comparative study on the treatment of gelatin production plant wastewater using electrocoagulation and chemical coagulation
title_sort comparative study on the treatment of gelatin production plant wastewater using electrocoagulation and chemical coagulation
publishDate 2019
url http://sedici.unlp.edu.ar/handle/10915/128500
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