At a time when the process of urban modernization is accelerating, the discharge of municipal sewage continues to rise, among which excessive ammonia nitrogen has become a key problem in water pollution control. Ammonia nitrogen remover, as a professional agent that efficiently solves ammonia nitrogen pollution, is widely used in the field of municipal sewage treatment. It reacts with ammonia nitrogen through chemical reactions, converting it into harmless substances, thereby achieving sewage purification and effectively avoiding the threat of ammonia nitrogen to water ecology and human health.
Core Features of Ammonia Nitrogen Remover
Efficient and Fast
The outstanding advantage of ammonia nitrogen remover is its rapid reaction. It can react chemically with ammonia nitrogen in sewage in a short time, and can usually significantly reduce the concentration of ammonia nitrogen within 10-15 minutes. Taking a large municipal sewage treatment plant as an example, after using ammonia nitrogen remover, the ammonia nitrogen concentration of sewage dropped from 50mg/L to below 15mg/L within half an hour, and the treatment efficiency was much higher than that of traditional biological treatment methods.
Wide Range of Applications
Whether it is high-concentration ammonia nitrogen wastewater or low-concentration ammonia nitrogen excessive sewage, ammonia nitrogen remover can play a role. From domestic sewage to industrial and domestic mixed sewage, the agent can react stably under a wide range of pH values of 4-12, and is not significantly affected by water quality fluctuations and seasonal changes. In cold areas in northern winter, municipal sewage treatment plants use ammonia nitrogen removers to ensure that ammonia nitrogen is discharged in compliance with standards, solving the problem of biological treatment efficiency decline due to low temperature.
Easy to Operate
Ammonia nitrogen removers do not require complex equipment and professional operators. Simply dissolve the agent, add it to the sewage through a simple dosing device, and stir to complete the reaction process. Compared with biological treatment, which requires the cultivation of microbial flora and the control of complex environmental conditions, it greatly reduces the difficulty of operation and management costs.
Environmentally Friendly and Safe
High-quality ammonia nitrogen removers will not produce secondary pollution during the removal of ammonia nitrogen. The substances generated by the reaction are harmless precipitates or gases, which are easy to separate and treat. At the same time, the agent itself does not contain toxic and harmful substances such as heavy metals, which is friendly to the subsequent sewage treatment process and the environment, and conforms to the development concept of green environmental protection.
Dosage of Ammonia Nitrogen Remover
The dosage of ammonia nitrogen remover is not fixed, but is affected by the initial concentration of ammonia nitrogen in sewage, water quality and treatment objectives. Generally speaking, the precise dosage can be determined by laboratory tests. During the test, a certain amount of sewage sample is taken, and the ammonia nitrogen remover is prepared into a solution of appropriate concentration, added to the sewage according to different dosage ratios, and the ammonia nitrogen concentration is detected after sufficient stirring. According to the experimental results, a relationship curve between dosage and ammonia nitrogen removal rate is drawn to determine the optimal dosage required to achieve the target ammonia nitrogen concentration. In practical applications, if the initial concentration of ammonia nitrogen in sewage is 30-50mg/L, the dosage of ammonia nitrogen remover is usually between 500-1000ppm (mg/L); if the ammonia nitrogen concentration is higher, the dosage needs to be increased accordingly.
How to Use Ammonia Nitrogen Remover?
Dissolution and dilution
Before using the ammonia nitrogen remover, dissolve it into a solution of a certain concentration. Generally, the dissolved concentration should be controlled at 5%-20%. A special dissolving tank can be used to slowly add the agent to the water according to the ratio of the agent to water, and the stirring equipment can be turned on at the same time to ensure that the agent is fully dissolved to avoid agglomeration.
Accurate Dosing
The dissolved ammonia nitrogen remover solution is accurately added to the appropriate link of sewage treatment through a metering pump or other dosing equipment. Usually, it can be added in front of the sewage reaction tank, sedimentation tank, etc. to ensure that the agent and sewage have enough reaction time. During the dosing process, the dosage should be adjusted in time according to the changes in sewage flow and ammonia nitrogen concentration to ensure stable treatment effect.
Fully stirring
After adding the ammonia nitrogen remover, the sewage needs to be fully stirred. Through mechanical stirring or aeration stirring, the agent and sewage are fully mixed and evenly mixed, the chemical reaction speed is accelerated, and the ammonia nitrogen removal efficiency is improved. The stirring time is generally controlled at about 10-15 minutes to ensure complete reaction.
Application Cases of Ammonia Nitrogen Remover
Case 1: A sewage treatment plant in a second-tier city
The sewage treatment plant has a treatment capacity of 50,000 tons per day. The sewage treated is mainly a mixture of domestic sewage and some industrial wastewater, with an average ammonia nitrogen concentration of about 40mg/L. After adopting the traditional biological treatment process, the ammonia nitrogen concentration still cannot stably meet the emission standards. After the introduction of the ammonia nitrogen remover, it was added before the secondary sedimentation tank. After several small tests, the dosage was determined to be 800ppm. The ammonia nitrogen concentration of the treated sewage has steadily dropped to below 10mg/L, reaching the national Class A emission standard, and the operating cost has been reduced by 30% compared with the upgraded biological treatment process.
Case 2: Industrial Park Supporting Sewage Treatment Station
This sewage treatment station serves many small enterprises in the surrounding area. The sewage composition is complex and the ammonia nitrogen concentration fluctuates greatly, up to 100mg/L. When using the ammonia nitrogen remover, the dosage is dynamically adjusted according to the real-time monitoring data of the ammonia nitrogen concentration in the sewage. When the ammonia nitrogen concentration is 80mg/L, the dosage is controlled at 1200ppm. After treatment, the ammonia nitrogen concentration is stabilized below 15mg/L, which effectively solves the problem of excessive ammonia nitrogen and ensures the safety of the surrounding water environment.
In summary, ammonia nitrogen removers have shown strong advantages in municipal sewage treatment due to their high efficiency, wide range of applications, simple operation, environmental protection and safety. Reasonable determination of the addition amount, standardized use methods, and combined with actual case experience can give full play to the effectiveness of ammonia nitrogen removers, provide reliable guarantees for urban sewage treatment, and help achieve sustainable development of water resources.
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