As a person engaged in sewage treatment engineering, excessive ammonia nitrogen is a serious problem that we often face in our daily work. Excessive ammonia nitrogen not only pollutes water bodies, but also directly affects the ecological environment and human health. Therefore, we must take practical and effective measures to solve the problem of excessive ammonia nitrogen in water bodies.
1. The hazards of excessive ammonia nitrogen
As a common pollutant, ammonia nitrogen is mainly used in domestic sewage, industrial wastewater and agricultural wastewater. When ammonia nitrogen in water exceeds the standard, it can lead to the following hazards:
1. Destruction of aquatic ecological balance: Excessive ammonia nitrogen will damage the aquatic ecological balance, lead to the death of aquatic organisms, and then affect the self-purification ability of the water body.
2. Threat to human health: Ammonia nitrogen in water bodies exceeding the standard may be absorbed by the human body, posing a potential threat to human health.
3. Affect water quality: excessive ammonia nitrogen will make the water body turbid, produce peculiar smell, and obviously affect water quality.
Second, the reasons for the excess of ammonia nitrogen
There are many reasons for ammonia nitrogen exceedance:
1. Excessive sewage discharge: The discharge of domestic sewage, industrial wastewater and agricultural wastewater is too large, exceeding the self-purification capacity of the water body.
2. Imperfect sewage treatment facilities: Imperfect sewage treatment facilities cannot effectively remove pollutants such as ammonia nitrogen.
3. Backward sewage treatment technology: Backward sewage treatment technology cannot meet the effective removal needs of pollutants such as ammonia nitrogen.
3. Measures to solve the excessive ammonia nitrogen standard
In order to deal with the problem of ammonia nitrogen exceeding the standard, we can take the following measures:
1. Strengthen the management of sewage discharge: strictly control the discharge of domestic sewage, industrial wastewater and agricultural wastewater, and reduce the amount of sewage discharge.
2. Improve sewage treatment facilities: transform and upgrade existing sewage treatment facilities to improve their treatment efficiency.
3. Adopt excellent sewage treatment technology: introduce excellent technologies such as biological treatment and chemical treatment to effectively remove pollutants such as ammonia nitrogen in water.
Fourth, the actual case analysis
Take a sewage treatment plant as an example, the plant found that ammonia nitrogen exceeded the standard when treating domestic sewage. After in-depth analysis, it was found that it was mainly caused by imperfect sewage treatment facilities and backward sewage treatment technology. To solve this problem, the plant has taken the following measures:
1. The existing sewage treatment facilities have been renovated and upgraded, and the treatment efficiency has been significantly improved.
2. The introduction of excellent biological treatment technology has successfully removed pollutants such as ammonia nitrogen.
3. After transformation and upgrading, the ammonia nitrogen removal rate of the plant has been significantly improved, and the water quality has been significantly improved.
V. Conclusions
As a wastewater treatment engineer, it is important to always pay attention to the ammonia nitrogen content in the water body and take practical and effective measures to solve the problem of excessive ammonia nitrogen. If you encounter the problem of excessive ammonia nitrogen in the water body, it is recommended to consult technical personnel to analyze the on-site sewage situation and provide solutions to achieve the treatment effect.