JUARA 3 MYRES Bidang Mate-matika , Sains dan Teknoogi / Tips and Trik / Hasil Penelitian

Summary

In this presentation, Kansa Cahaya Angelia and Kismawati from MTS Negeri 6 Sleman, Yogyakarta, share their research on reducing industrial waste from electroplating using blood clam shell tablets. They explain the multi-step process of preparing and testing the shells, including cleaning, drying, grinding, and mixing with sodium bicarbonate and citric acid to create Everfashion tablets. These tablets are tested for their ability to absorb heavy metals like Cu and Cr from wastewater, showing that increased mass and exposure time improve absorption efficiency. The research highlights the potential of blood clam shells as an eco-friendly biosorbent.

Takeaways

• 😀 The research presented is focused on reducing industrial waste pollution, specifically electroplating waste, using blood clam shell tablets.
• 😀 The research is conducted by Kansa Cahaya Angelia and Kismawati from MTS Negeri 6 Sleman, Yogyakarta.
• 😀 Electroplating in Kota Gede, known for silver production, generates hazardous waste that poses environmental threats.
• 😀 The research involved collecting electroplating waste from a silver industry in Kota Gede as a sample for analysis.
• 😀 Blood clam shells (Anadara Granosa) were cleaned, dried, and then pulverized for testing to determine their calcium carbonate (CaCO3) content.
• 😀 The shells were then subjected to a process called 'furnacing' at 600°C for 6 hours to further refine the material.
• 😀 The refined clam shell powder was sieved using a 200 mesh sieve to prepare it for the next phase of tablet production.
• 😀 A mixture of clam shell ash, sodium bicarbonate, and citric acid was used to create the tablets, which were then compressed into tablet form.
• 😀 The tablets were tested for moisture and ash content, showing an average moisture content of 2.34% and an ash content of 2.46%.
• 😀 The study tested the effectiveness of the tablets in absorbing metal ions (Cu, Cr) under various conditions, with results indicating better absorption as the mass of the ash and exposure time increased.
• 😀 The research concluded that blood clam shells can be effectively used as biosorbents to absorb metal ions like Cu2+ due to their calcium content and functional groups like -OH, C=O, and NH2.

Q & A

What is the title of the research presented in the transcript?

The title of the research is 'Reduksiogam Pencemar Limbah Industri Electroplating Menggunakan Tablet Everfion Cangkang Kerang Darah Anadara Granosa'.

Where was the research conducted?

The research was conducted at MTS Negeri 6 Sleman, Yogyakarta, Indonesia.

What type of pollution is the study focused on?

The study focuses on the reduction of pollutants from electroplating industrial waste.

What is the main raw material used in the research?

The main raw material used in the research is the shell of Anadara Granosa, a type of blood clam.

What is the process for preparing the shell material for the experiment?

The process involves cleaning the shells, drying them under the sun, crushing them into smaller pieces, and then testing the CaCO3 content using FTIR before furnace heating at 600°C for 6 hours.

What is the purpose of heating the shell material in a furnace?

The purpose of heating the shell material in the furnace is to transform it into a suitable form for making the Everfion tablet, as well as to reduce the moisture content.

What is the composition of the Everfion tablet made in the study?

The Everfion tablet is made by mixing crushed shell ash with sodium bicarbonate (1 gram) and citric acid (1 gram), followed by stirring and molding the mixture into tablets.

How was the effectiveness of the Everfion tablet tested?

The effectiveness of the Everfion tablet was tested using AAS (Atomic Absorption Spectroscopy) on 27 samples, with varying masses of shell ash and contact times of 30, 60, and 90 minutes.

What was the main finding of the research regarding the absorption of metals?

The main finding was that as the mass of the shell ash increased and the exposure time was prolonged, the absorption of Cu and Cr ions improved.

What functional groups were identified in the shell material that aid in metal absorption?

The shell material contains functional groups such as -OH, C=O, and NH2, which help in the absorption of Cu2+ ions.

What environmental problem does this research aim to address?

This research aims to address the environmental hazard posed by electroplating industrial waste, which contains hazardous B3 waste that can harm the environment.

What is the significance of this research for the future of environmental science?

The research suggests that Anadara Granosa shells can be used as biosorbents for removing heavy metal ions from polluted water, offering a sustainable solution for reducing industrial waste contamination.