Total removal of heavy metal from mixed plating rinse wastewater

Sapari, Nasiman and Idris, Azni and Ab Hamid, Noor Hisham (1996) Total removal of heavy metal from mixed plating rinse wastewater. Desalination, 106 (1-3). pp. 419-422. ISSN 0011-9164

[thumbnail of Journal] PDF (Journal)
Restricted to Registered users only

Download (284kB) | Request a copy
Official URL:


A mixed plating rinse wastewater containing zinc, hexavalent chromium, trivalent chromium, and cyanide
with total dissolved solids of 424 mgil was treated by a model consisting of a sand filter and ion exchange
columns. A strongly acidic cation resin in hydrogen form and a strongly basic anion resin in hydroxide form were
used in the columns as cationic and anionic exchangers, respectively. The cationic and anionic exchangers were
regenerated by using 2% H,SO, and 5% NaOH, respectively. A 100% removal of zinc, total chromium, hexavalent
chromium and trivalent chromium was achieved in the studies. Very high removal of total dissolved solids,
cyanide and hardness level was achieved at 98.9%, 99.9% and 96.5%, respectively. The conductivity of
wastewater was reduced from an average of 358 psicm to 5 psicm. The case study has shown that treatment
systems using cationic and anionic resin were able to treat a mixed plating bath effluent to comply with the
standard discharge under the Malaysian Environmental Quality (Sewage and Industrial Effluents} Regulation,

Item Type: Article
Uncontrolled Keywords: Removal; Heavy metal; Plating; Rinse wastewater; Ion exchange
Subjects: T Technology > TD Environmental technology. Sanitary engineering
Departments / MOR / COE: Departments > Civil Engineering
Depositing User: Assoc Prof Dr Nasiman Sapari
Date Deposited: 07 Apr 2011 09:06
Last Modified: 19 Jan 2017 08:27

Actions (login required)

View Item
View Item