CD Tesis
Degradasi Limbah Cair Industri Pulp Dan Kertas Dengan Metode Fotokatalitik Menggunakan Membran Katalis Pvdf/Ctf-Zn
The pulp and paper industry ranks third in water use after the metal and
chemical industries. The use of water in the industry impacts the liquid waste
produced. The effluent from the pulp and paper industry has a very complex
composition. Therefore it is almost impractical to characterise all the components
like other industrial wastewater. Based on government regulations, liquid waste
discharged into water bodies must meet quality standards. One of the efforts to
meet these quality standards involves combining various technologies. Membrane
technology has significantly developed as it offers a technically easier and more
energetically beneficial solution than conventional separation processes.
However, they show low selectivity and permeability due to their low chemical
and thermal stability and amorphous nature. This problem can be solved by
incorporating membranes and composites with adjustable crystalline properties
and structures, such as Covalent Triazine Frameworks (CTFs). CTF has various
advantages, such as adjustable C/N/H composition, providing new properties and
characteristics, large surface area, and varying pore sizes.
This study aims to innovate PVDF membranes and CTF-Zn catalysts and
their application in the AOP process of degradation of pulp and paper waste. The
research began with synthesising and characterising PVDF membranes, CTF-Zn
catalysts, and PVDF/CTF-Zn catalyst membranes. Next, determine the effect of
various photodegradation process variables (AOP method, effect of adding
catalyst to the membrane, operating temperature, and pH) on the degradation of
organic compounds from pulp and paper waste. The final step is to determine the
reusability performance of the PVDF/CTF-Zn catalyst membrane in the
degradation of pulp and paper waste. In this study, the degradation process was
carried out using pulp and paper waste and PVDF/CTF-Zn as catalyst
membranes. The variables of this study are catalyst control, membranes, and
membrane-catalysts; The concentration of CTF-Zn in the membrane composite is
0%; 0.25%; 0.5%; 1%; Operating temperature 25; 35; 45oC; Oxone oxidants,
PDS and PMS.
PVDF/CTF composite membranes have been successfully synthesised
based on FTIR, SEM-EDX and contact angle analysis. The degradation process
of pulp and paper industry wastewater with various variables has been carried
out, obtaining optimum results using the photocatalytic method at a temperature
of 25 oC, PVDF/CTF-Zn catalyst membrane of 0.5, a waste concentration of 1151
ppm and stirring speed of 750 rpm for 120 minutes with a COD reduction
efficiency of 85.31% and a BOD reduction efficiency of 86.9% which meets the
quality standards based on PerMenLH No.5 of 2014. Regarding reusability
performance, COD reduction shows a stable degradation percentage after five
recycles.
Key Words : Pulp and Paper Wastewater, AOP, Photocatalytic, Catalytic
Membrane, PVDF/CTF-Zn.
Tidak tersedia versi lain