Monitoring Plan for Industrial Water Quality

introduction

Industrial water quality monitoring is an important link in ensuring industrial production safety and improving resource utilization efficiency. The quality of water directly affects the operational efficiency of equipment, the quality of products, and the protection of the environment. Therefore, developing a scientifically reasonable industrial water quality monitoring plan is of great significance for ensuring the smooth progress of industrial production.

Monitoring objectives

The main goal of industrial water quality monitoring is to ensure the stability of the water quality in the circulating water system and prevent equipment corrosion, scaling, and microbial growth caused by water quality issues. Specific monitoring objectives include:

Evaluate the corrosiveness and scaling of water: by monitoring basic parameters such as total hardness, total alkalinity, pH value, etc.

Evaluate the cleanliness and biological activity of water: monitor indicators such as suspended solids, turbidity, dissolved oxygen, etc.

Assessing the safety and health risks of water: monitoring harmful substances such as heavy metals, organic matter, and microorganisms.

Monitoring indicators

Basic physical indicators

PH value: an important indicator for measuring the acidity and alkalinity of water bodies, which directly affects the corrosiveness of equipment materials and the rate of chemical reactions.

Conductivity: an indicator that reflects the total ion content in water and can be used to evaluate the purity of water.

Total hardness: refers to the total content of calcium and magnesium ions in water. High hardness water can easily cause equipment scaling.

Total dissolved solids: Refers to the total amount of solid substances dissolved in water, used to evaluate the mineralization degree of water.

Sensory trait indicators

Chromaticity: Reflects the depth of water color and affects the appearance of water.

Turbidity: Refers to the content and size of suspended substances in water, which directly affects the cleanliness of the water.

Odor and Odor: Evaluate the sensory quality of water to determine if there are any unusual or unpleasant odors present.

Comprehensive indicators

Oxygen consumption: It reflects the content of organic pollutants in water and is used to evaluate the comprehensive pollution level of water.

Biochemical oxygen demand: refers to the amount of oxygen consumed by microorganisms in water to oxidize and decompose organic matter under specific conditions, used to evaluate the self purification capacity of water bodies.

Hazardous substance indicators

Heavy metals, such as lead, cadmium, chromium, mercury, etc., are toxic to humans and the environment.

Organic compounds such as benzene, xylene, formaldehyde, etc. may pose a threat to human health.

Microorganisms, such as total bacterial count, coliform bacteria, mold, yeast, etc., are used to evaluate the hygiene condition of water.

Monitoring methods

Online monitoring

Online monitoring is achieved by installing various water quality monitoring instruments, such as hardness testers, pH meters, turbidity meters, dissolved oxygen meters, etc., to obtain real-time water quality data and detect water quality abnormalities in a timely manner. Online monitoring has the characteristics of real-time, continuity, and automation, and can quickly respond to changes in water quality.

Offline analysis

Offline analysis involves regularly taking water samples from circulating water and sending them to the laboratory for detailed analysis. Offline analysis can determine more water quality indicators, including total hardness, total alkalinity, pH value, suspended solids, turbidity, dissolved oxygen, heavy metals, organic matter, microorganisms, etc. The results of offline analysis are more accurate and comprehensive, and can determine the specific causes of water quality problems.

Monitoring frequency

The monitoring frequency should be determined based on production needs and water quality conditions. Generally speaking, online monitoring should be conducted at least once a day, and offline analysis should be conducted once a week. In case of abnormal water quality or changes in production load, the monitoring frequency should be increased to promptly detect and address water quality issues.

Data processing and analysis

The collected water quality data needs to be analyzed and processed in detail. Firstly, check the accuracy and completeness of the data, eliminate outliers and erroneous data. Then, evaluate the water quality status by comparing monitoring data with standard values. At the same time, analyze the trend of data changes, predict changes in water quality, and develop corresponding treatment measures. According to the data analysis results, the dosage of water treatment agents can be adjusted, and the operating parameters of the circulating water system can be optimized.

conclusion

Industrial water quality monitoring is an important means to ensure production safety and improve resource utilization efficiency. Through scientific and effective monitoring programs, water quality issues can be detected and addressed in a timely manner, ensuring the stable operation of the circulating water system. Developing and implementing a reasonable monitoring plan requires comprehensive consideration of multiple aspects such as monitoring objectives, monitoring indicators, monitoring methods, and monitoring frequency. Only comprehensive and systematic water quality monitoring can provide strong support for industrial production.