biological sewage treatment
发音：/bi?l?d??k?l?/ /s??w?ts/ /?te?t?(?)r?t/
英语范文：
Biological sewage treatment is a method of treating sewage using microorganisms to break down waste materials. It is commonly used in municipal and industrial wastewater treatment facilities. The process involves introducing microorganisms into the sewage, allowing them to grow and break down the waste materials. This process reduces the amount of pollutants in the water, making it safer and more environmentally friendly.
英语作文音标和基础释义：
biological sewage treatment n. 生物污水处理法
处理污水的一种方法，利用微生物分解污水中的废弃物。常用于市政和工业废水处理设施。过程包括向污水引入微生物，让其生长并分解废弃物。此过程减少了水中的污染物含量，使其更安全，更环保。
Biological Sewage Treatment
Biological sewage treatment is a method of treating sewage using microorganisms. It is a green and efficient method that can effectively remove pollutants from sewage, including organic matter, bacteria, viruses, and other harmful substances.
In biological sewage treatment, microorganisms such as bacteria and fungi play an important role. They can degrade and decompose pollutants in sewage through various metabolic processes, thereby reducing the amount of pollutants in the effluent and improving water quality.
One of the main methods of biological sewage treatment is the activated sludge process, which involves mixing sewage with a suspension of microorganisms, allowing the microorganisms to grow and degrade pollutants, and then discharging the treated sewage. This process can be divided into several stages, including feeding, aeration, sedimentation, and discharge.
In addition to the activated sludge process, there are also other methods of biological sewage treatment, such as anaerobic treatment, aerobic treatment, and membrane bioreactor treatment. Each method has its own advantages and disadvantages, and should be selected according to the specific conditions of the sewage treatment plant.
In conclusion, biological sewage treatment is an effective and environmentally friendly method of treating sewage. It can effectively remove pollutants from sewage and improve water quality, thereby reducing the environmental pollution caused by sewage discharge. Therefore, it is necessary to promote the application of biological sewage treatment technology and improve the efficiency of sewage treatment facilities.
Biological Sewage Treatment
Biological sewage treatment is a method of treating sewage using microorganisms. It is one of the most common methods of sewage treatment and is commonly used in municipal and industrial wastewater treatment facilities.
The process of biological sewage treatment involves the interaction between microorganisms and sewage. Microorganisms such as bacteria, fungi, and protozoa consume organic matter in the sewage, breaking it down into harmless substances. This process reduces the amount of pollutants in the sewage and creates a more environmentally friendly end product.
One of the main benefits of biological sewage treatment is that it is a highly efficient and cost-effective method of removing pollutants from wastewater. It also requires a relatively small amount of space and can be easily scaled up or down depending on the needs of the facility.
Another benefit of biological sewage treatment is that it can be used to treat a wide range of pollutants, including organic substances, nutrients such as nitrogen and phosphorus, and even some pharmaceuticals and personal care products that may be present in the sewage.
However, biological sewage treatment also has some limitations. For example, it may not be able to remove all types of pollutants, especially those that are present in high concentrations or are resistant to biodegradation. Additionally, the effectiveness of biological sewage treatment can be affected by factors such as temperature, pH, and the presence of other pollutants in the sewage.
In conclusion, biological sewage treatment is an effective and environmentally friendly method of treating sewage. It can remove a wide range of pollutants from wastewater and creates a more environmentally friendly end product. However, it also has some limitations that may require further research and development to address.
