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Oct 13, 2025 by wbrum.org 141 views

Analysis of Chemical Oxygen Demand (COD) levels on titrimetric domestic liquid waste at PT. Shafera Enviro Laboratory

Introduction

The analysis of Chemical Oxygen Demand (COD) levels on domestic liquid waste is a crucial step in assessing water quality, especially in areas where liquid waste management is a significant concern. In this study, we conducted a titrimetric analysis of three domestic liquid waste samples at PT. Shafera Enviro Laboratory to determine the level of pollution produced by the liquid waste. The results of this study provide valuable insights into the importance of measuring COD levels and the need for effective liquid waste management.

The Importance of Measurement of COD Content

Chemical Oxygen Demand (COD) is an essential indicator in assessing water quality, particularly for domestic liquid waste. High COD levels indicate organic contamination that can potentially endanger the aquatic ecosystem and human health. Therefore, COD measurements are one of the first steps in managing liquid waste. In research conducted at PT. Shafera Enviro Laboratory, the results show that two of the three sewage samples meet quality standards, while one sample shows a fairly high COD level. This indicates the need for more attention to the sample I-045 which can potentially pollute the environment if not managed properly.

The measurement of COD levels is crucial in determining the level of pollution in liquid waste. COD levels can be used to assess the effectiveness of waste treatment processes and to identify areas where improvement is needed. In addition, COD levels can be used to determine the potential impact of liquid waste on the environment and human health.

Titrimetry Methodology

Titrimetry is a method of analysis commonly used to determine COD levels. This method involves the use of certain reagents that react with oxygen content in waste. This process allows researchers to measure the amount of oxygen needed to oxidize organic matter in the sample, thus providing a clearer picture of the level of pollution.

The titrimetry method involves the following steps:

Sample preparation: The liquid waste sample is prepared by diluting it to a specific concentration.
Reagent preparation: The reagents used in the titrimetry method are prepared according to the manufacturer's instructions.
Titration: The reagents are added to the sample in a specific order, and the reaction is monitored until the endpoint is reached.
Calculation: The COD level is calculated based on the amount of reagent used and the reaction time.

Quality Standard Standards

Liquid waste quality standards are regulated to protect the environment and public health. Each country has different regulations regarding the maximum limit of COD levels. In Indonesia, the level of domestic liquid waste COD that is permitted generally ranges from 50-100 mg/L depending on the classification of waste. In the case of PT. Shafera, sample I-045 which has a COD level of 134.93 mg/L clearly violates this provision.

The quality standard standards for liquid waste are as follows:

Class I: COD level ≤ 50 mg/L
Class II: COD level ≤ 100 mg/L
Class III: COD level > 100 mg/L

Conclusion and Suggestions

Based on the results of the analysis, it can be concluded that two of the three domestic liquid waste samples meet quality standards, while one sample requires more attention because of its high COD levels. It is recommended for waste management to take mitigation actions, such as more efficient waste treatment before being discharged into the environment.

With a better understanding of the importance of measuring COD levels and liquid waste management, it is expected to minimize the negative impacts on the environment and public health. Further research is also needed to identify the source of pollution and more effective improvement steps.

Recommendations

Based on the results of this study, the following recommendations are made:

Improve waste treatment processes: The waste treatment processes at PT. Shafera need to be improved to reduce the COD levels of the liquid waste.
Increase public awareness: Public awareness about the importance of measuring COD levels and liquid waste management needs to be increased.
Conduct further research: Further research is needed to identify the source of pollution and more effective improvement steps.

Limitations of the Study

This study has several limitations, including:

Small sample size: The sample size of this study is small, and further research is needed to confirm the results.
Limited data: The data collected in this study is limited, and further research is needed to collect more data.
Methodological limitations: The titrimetry method used in this study has limitations, and further research is needed to develop more accurate methods.

Future Research Directions

Future research directions include:

Developing more accurate methods: Developing more accurate methods for measuring COD levels is essential to improve the accuracy of the results.
Increasing sample size: Increasing the sample size of the study is essential to confirm the results.
Conducting further research: Conducting further research is essential to identify the source of pollution and more effective improvement steps.

Conclusion

In conclusion, this study highlights the importance of measuring COD levels and liquid waste management. The results of this study show that two of the three domestic liquid waste samples meet quality standards, while one sample requires more attention because of its high COD levels. It is recommended for waste management to take mitigation actions, such as more efficient waste treatment before being discharged into the environment. Further research is also needed to identify the source of pollution and more effective improvement steps.
Frequently Asked Questions (FAQs) about Chemical Oxygen Demand (COD) levels on titrimetric domestic liquid waste at PT. Shafera Enviro Laboratory

Q: What is Chemical Oxygen Demand (COD)?

A: Chemical Oxygen Demand (COD) is an important indicator in assessing water quality, particularly for domestic liquid waste. It measures the amount of oxygen required to break down organic matter in the waste.

Q: Why is COD measurement important?

A: COD measurement is important because it helps to determine the level of pollution in liquid waste. High COD levels indicate organic contamination that can potentially endanger the aquatic ecosystem and human health.

Q: What is the titrimetry method used to measure COD levels?

A: The titrimetry method involves the use of certain reagents that react with oxygen content in waste. This process allows researchers to measure the amount of oxygen needed to oxidize organic matter in the sample.

Q: What are the quality standard standards for liquid waste?

A: Liquid waste quality standards are regulated to protect the environment and public health. Each country has different regulations regarding the maximum limit of COD levels. In Indonesia, the level of domestic liquid waste COD that is permitted generally ranges from 50-100 mg/L depending on the classification of waste.

Q: What are the limitations of the study?

A: The study has several limitations, including a small sample size, limited data, and methodological limitations.

Q: What are the recommendations for waste management?

A: The recommendations for waste management include improving waste treatment processes, increasing public awareness, and conducting further research to identify the source of pollution and more effective improvement steps.

Q: What are the future research directions?

A: The future research directions include developing more accurate methods for measuring COD levels, increasing the sample size of the study, and conducting further research to identify the source of pollution and more effective improvement steps.

Q: What is the significance of this study?

A: This study highlights the importance of measuring COD levels and liquid waste management. The results of this study show that two of the three domestic liquid waste samples meet quality standards, while one sample requires more attention because of its high COD levels.

Q: What are the implications of this study?

A: The implications of this study are that waste management needs to take mitigation actions, such as more efficient waste treatment before being discharged into the environment. Further research is also needed to identify the source of pollution and more effective improvement steps.

Q: What are the potential applications of this study?

A: The potential applications of this study include improving waste treatment processes, increasing public awareness, and developing more effective methods for measuring COD levels.

Q: What are the potential benefits of this study?

A: The potential benefits of this study include minimizing the negative impacts on the environment and public health, and improving the overall quality of life.

Q: What are the potential challenges of this study?

A: The potential challenges of this study include developing more accurate methods for measuring COD levels, increasing the sample size of the study, and conducting further research to identify the source of pollution and more effective improvement steps.

Q: What are the potential future directions of this study?

A: The potential future directions of this study include developing more accurate methods for measuring COD levels, increasing the sample size of the study, and conducting further research to identify the source of pollution and more effective improvement steps.

Q: What are the potential limitations of this study?

A: The potential limitations of this study include a small sample size, limited data, and methodological limitations.

Q: What are the potential recommendations for future research?

A: The potential recommendations for future research include developing more accurate methods for measuring COD levels, increasing the sample size of the study, and conducting further research to identify the source of pollution and more effective improvement steps.

Q: What are the potential implications of this study for policy makers?

A: The potential implications of this study for policy makers include the need to develop more effective policies for waste management, and to increase public awareness about the importance of measuring COD levels and liquid waste management.

Q: What are the potential implications of this study for the environment?

A: The potential implications of this study for the environment include the need to minimize the negative impacts on the environment and public health, and to improve the overall quality of life.

Q: What are the potential implications of this study for public health?

A: The potential implications of this study for public health include the need to minimize the negative impacts on the environment and public health, and to improve the overall quality of life.

Q: What are the potential implications of this study for the economy?

A: The potential implications of this study for the economy include the need to minimize the negative impacts on the environment and public health, and to improve the overall quality of life.

Q: What are the potential implications of this study for the community?

A: The potential implications of this study for the community include the need to minimize the negative impacts on the environment and public health, and to improve the overall quality of life.

Q: What are the potential implications of this study for the industry?

A: The potential implications of this study for the industry include the need to develop more effective methods for measuring COD levels, and to improve waste treatment processes.

Q: What are the potential implications of this study for the government?

A: The potential implications of this study for the government include the need to develop more effective policies for waste management, and to increase public awareness about the importance of measuring COD levels and liquid waste management.