Soluble phosphate fertilizer production using acid effluent from metallurgical industry

Preventive and effective waste management requires cleaner production strategies and technologies for recycling and reuse. Metallurgical industries produce a great amount of acid effluent that must be discarded in a responsible manner, protecting the environment. The focus of this study was to exami...

Full description

Saved in:
Bibliographic Details
Published in:Journal of environmental management 2016-01, Vol.166, p.140-146
Main Authors: Mattiello, Edson M., Resende Filho, Itamar D.P., Barreto, Matheus S., Soares, Aline R., Silva, Ivo R. da, Vergütz, Leonardus, Melo, Leônidas C.A., Soares, Emanuelle M.B.
Format: Article
Language:English
Subjects:
Citric Acid - chemistry
Effluents
Environmental management
Fertilizers - analysis
Industrial Waste - analysis
Metal industry
Metallurgy
Natural phosphates
Partially acidulated phosphate
Phosphates - chemistry
Phosphatic fertilizers
Quaternary Ammonium Compounds - chemistry
Recycling
Reuse
Solubility
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Preventive and effective waste management requires cleaner production strategies and technologies for recycling and reuse. Metallurgical industries produce a great amount of acid effluent that must be discarded in a responsible manner, protecting the environment. The focus of this study was to examine the use of this effluent to increase reactivity of some phosphate rocks, thus enabling soluble phosphate fertilizer production. The effluent was diluted in deionized water with the following concentrations 0; 12.5; 25; 50; 75% (v v−1), which were added to four natural phosphate rocks: Araxá, Patos, Bayovar and Catalão and then left to react for 1 h and 24 h. There was an increase in water (PW), neutral ammonium citrate (PNAC) and citric acid (PCA) soluble phosphorus fractions. Such increases were dependent of rock type while the reaction time had no significant effect (p 
ISSN:0301-4797
1095-8630
DOI:10.1016/j.jenvman.2015.10.012