Recovery of cupric oxide from copper-containing wastewater sludge by acid leaching and ammonia purification process

Jun Yi Wu, Wei Shan Chou, Wei Sheng Chen, Fang Chih Chang, Yun Hwei Shen, Juu En Chang, Min Shing Tsai

研究成果: Article

3 引文 (Scopus)

摘要

The purpose of this study is to provide an efficient, simple, and economical method for the recovery of copper and removal of oil residue from copper-containing wastewater sludge using acid leaching and ammonia purification. In the first stage, sulfuric acid and hydrogen peroxide were used to leach a homogeneous suspension. The copper extraction percentage exceeded 90% in 30 min and oil residue was removed from the sludge. In the second stage, ammonia/ammonium carbonate media were used to purify the sulfuric acid leachate by forming an ammine complex. Through this process, ammonium hydroxide was recovered using an evaporating device and copper hydroxide was transformed into cupric oxide. The purity of copper in the oxide compound reached 98.26%. The economic evaluation of this process for a capacity of six tons of copper-containing wastewater sludge per day is discussed. For an initial capital investment of NT$3.2 million with annual operating and maintenance costs of about NT$3.13 million, the comparative savings in sludge treatment would be about NT$1.44 million per year. Given an annual net profit from sales of cupric oxide powder of about NT$3 million, total investment in the two-stage leaching process would be repaid in 30 months.

原文English
頁(從 - 到)120-129
頁數10
期刊Desalination and Water Treatment
47
發行號1-3
DOIs
出版狀態Published - 2012 一月 1

指紋

Leaching
Purification
purification
Ammonia
Wastewater
ammonia
sludge
leaching
oxide
copper
Copper
wastewater
Recovery
Oxides
Acids
acid
Sulfuric acid
sulfuric acid
hydroxide
ammonium

All Science Journal Classification (ASJC) codes

  • Water Science and Technology
  • Ocean Engineering
  • Pollution

引用此文

@article{85312a327457492b989abe56da43f66d,
title = "Recovery of cupric oxide from copper-containing wastewater sludge by acid leaching and ammonia purification process",
abstract = "The purpose of this study is to provide an efficient, simple, and economical method for the recovery of copper and removal of oil residue from copper-containing wastewater sludge using acid leaching and ammonia purification. In the first stage, sulfuric acid and hydrogen peroxide were used to leach a homogeneous suspension. The copper extraction percentage exceeded 90{\%} in 30 min and oil residue was removed from the sludge. In the second stage, ammonia/ammonium carbonate media were used to purify the sulfuric acid leachate by forming an ammine complex. Through this process, ammonium hydroxide was recovered using an evaporating device and copper hydroxide was transformed into cupric oxide. The purity of copper in the oxide compound reached 98.26{\%}. The economic evaluation of this process for a capacity of six tons of copper-containing wastewater sludge per day is discussed. For an initial capital investment of NT$3.2 million with annual operating and maintenance costs of about NT$3.13 million, the comparative savings in sludge treatment would be about NT$1.44 million per year. Given an annual net profit from sales of cupric oxide powder of about NT$3 million, total investment in the two-stage leaching process would be repaid in 30 months.",
author = "Wu, {Jun Yi} and Chou, {Wei Shan} and Chen, {Wei Sheng} and Chang, {Fang Chih} and Shen, {Yun Hwei} and Chang, {Juu En} and Tsai, {Min Shing}",
year = "2012",
month = "1",
day = "1",
doi = "10.1080/19443994.2012.696814",
language = "English",
volume = "47",
pages = "120--129",
journal = "Desalination and Water Treatment",
issn = "1944-3994",
publisher = "Taylor and Francis Ltd.",
number = "1-3",

}

TY - JOUR

T1 - Recovery of cupric oxide from copper-containing wastewater sludge by acid leaching and ammonia purification process

AU - Wu, Jun Yi

AU - Chou, Wei Shan

AU - Chen, Wei Sheng

AU - Chang, Fang Chih

AU - Shen, Yun Hwei

AU - Chang, Juu En

AU - Tsai, Min Shing

PY - 2012/1/1

Y1 - 2012/1/1

N2 - The purpose of this study is to provide an efficient, simple, and economical method for the recovery of copper and removal of oil residue from copper-containing wastewater sludge using acid leaching and ammonia purification. In the first stage, sulfuric acid and hydrogen peroxide were used to leach a homogeneous suspension. The copper extraction percentage exceeded 90% in 30 min and oil residue was removed from the sludge. In the second stage, ammonia/ammonium carbonate media were used to purify the sulfuric acid leachate by forming an ammine complex. Through this process, ammonium hydroxide was recovered using an evaporating device and copper hydroxide was transformed into cupric oxide. The purity of copper in the oxide compound reached 98.26%. The economic evaluation of this process for a capacity of six tons of copper-containing wastewater sludge per day is discussed. For an initial capital investment of NT$3.2 million with annual operating and maintenance costs of about NT$3.13 million, the comparative savings in sludge treatment would be about NT$1.44 million per year. Given an annual net profit from sales of cupric oxide powder of about NT$3 million, total investment in the two-stage leaching process would be repaid in 30 months.

AB - The purpose of this study is to provide an efficient, simple, and economical method for the recovery of copper and removal of oil residue from copper-containing wastewater sludge using acid leaching and ammonia purification. In the first stage, sulfuric acid and hydrogen peroxide were used to leach a homogeneous suspension. The copper extraction percentage exceeded 90% in 30 min and oil residue was removed from the sludge. In the second stage, ammonia/ammonium carbonate media were used to purify the sulfuric acid leachate by forming an ammine complex. Through this process, ammonium hydroxide was recovered using an evaporating device and copper hydroxide was transformed into cupric oxide. The purity of copper in the oxide compound reached 98.26%. The economic evaluation of this process for a capacity of six tons of copper-containing wastewater sludge per day is discussed. For an initial capital investment of NT$3.2 million with annual operating and maintenance costs of about NT$3.13 million, the comparative savings in sludge treatment would be about NT$1.44 million per year. Given an annual net profit from sales of cupric oxide powder of about NT$3 million, total investment in the two-stage leaching process would be repaid in 30 months.

UR - http://www.scopus.com/inward/record.url?scp=84866461961&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84866461961&partnerID=8YFLogxK

U2 - 10.1080/19443994.2012.696814

DO - 10.1080/19443994.2012.696814

M3 - Article

AN - SCOPUS:84866461961

VL - 47

SP - 120

EP - 129

JO - Desalination and Water Treatment

JF - Desalination and Water Treatment

SN - 1944-3994

IS - 1-3

ER -