Abstract
AbstractOne of the industries that use hazardous and toxic (B3) on the production process is leather tannery industry, with a compound chromium (Cr). Chromium in the compound, including heavy metals that have a known toxicity of high power. Alkali compound is Ca(OH)2, NaOH,and NaHCO3 the chemicals that can be used for processing liquid waste leather tannery industry that contains chromium, which works to raise the pH and precipitate chromium solution so produced chrome hidroksida in the form of chromium (Cr(OH)3). Results of research it was found that the pH optimum for alkali compound at each pH condition 8, the separation efficiency of 99.28% chromium compound using alkali Ca (OH) 2 and NaOH, while the use of 98.50% NaHCO3. Alkali compound which most effective review of technical aspects to a decrease in the concentration of chromium in leather tannery wastewater is NaOH, because with a small dose is able to separate the chromium in the wastewater with a high efficiency (99.28%), while the most economical and is recommended for applications is in the Ca(OH)2. Key words : Ca(OH)2, Cr2O3, separation efficiency, hidroksida chromium (Cr(OH)3), NaHCO3, NaOH, pH optimum, alkali compound.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.