Effect of the Use of Super Absorbent Polymer (SAP) and Its Order of Addition as Reagent on Hazardous Waste Solidification *)

Solidification is the most common technique used on the treatment of hazardous waste. The aim of this process is to alter the physical form of the waste which cannot be disposed directly to the landfills, with the incorporation of reagents. Portland cement is the most common reagent used in combination with sand or any other inert materials as filler. The common problem on this process is the relatively high water content which prevents the curing process, thus leads to the use of more reagent which increases the operational cost. Sorbent materials can be used to anticipate this problem, one of those is super absorbent polymer (SAP) which has been used on numbers of hazardous waste management cases in the U.S. From the trial, it was found that solidification process using SAP ratios of 0,1 (w/w) and adding it on the first stage, followed by Portland cement and sand ratios of 0,4 and 0,6 (w/w) respectively on the second stage, was able to obtain the minimum bearing strength criteria within the fastest the curing time.

Keywords: hazardous waste treatment, solidification, bearing strength, SAP.

*) Principal Investigator: Muhammad Yusuf Firdaus, Senior Technical Engineer, PT Prasadha Pamunah Limbah Industri

About Muhammad Yusuf Firdaus

Board Certified Professional Chemical Engineer | Scientist | Hazardous Waste Specialist

Posted on March 6, 2016, in Chemical Engineering, Chemistry, Waste Management and tagged , , , . Bookmark the permalink. Leave a comment.

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