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Production and Characterization of Eco-enzyme Produced from Pineapple
and Mango and its Influence on Aquaculture Sludge
Rubashini Vadiveloo
Supervisor: Dr. Nazaitulshila Binti Rasit
Bachelor of Technology (Environment)
School of Ocean Engineering
Universiti Malaysia Terengganu
Aquaculture sludge containing nitrogen and phosphorous has become major concern
due to its harmful effects to the environment. Thus, this study proposed to investigate
the potential use of pineapple and mango eco enzyme as an enzymatic pretreatment
agent to treat aquaculture sludge. The enzyme solution was prepared by fermentation
of mixture of sugar, fruit waste and water in the ratio of 1:3:10 respectively and the
characteristics of enzyme were investigated by the parameters such as pH, total
solid, total dissolved solid, biological oxygen demand, chemical oxygen demand
(COD) and enzymatic activity (amylase, protease, and lipase). The performance of eco
enzyme was determined by characterizing the sludge for the 10 days enzymatic
pretreatment in the presence of various eco-enzyme concentration solutions (5, 10, 15
times dilution). The parameters tested were total suspended solid (TSS), volatile
suspended solid (VSS), total ammonia nitrogen (TAN), total phosphate (TP) and COD.
The 10 th day pineapple eco enzyme sample (10%) showed maximum removal rate %
of TSS and VSS nearly 30- 40% whereas 68.3% for COD. The findings showed that
eco enzyme has the capability to reduce pollutant in aquaculture sludge.
89 | U M T U N D E R G R A D U A T E R E S E A R C H D A Y 2019