During the operation of a wastewater treatment plant, staff members often observe a substantial amount of garbage in the bio-tank, secondary settling tank, and other areas. This not only affects the aesthetics but also significantly impacts the equipment operation, such as water pump blockage, abnormal mixer sounds, sludge suction machine blockage, among others. So, what…
The sudden increase in COD and BOD in effluent from secondary settling tank can indicate malfunctioning of wastewater treatment process, caused by both external and internal factors. To identify the characteristics of harmful substances, it is necessary to measure sewage COD first. The phenomenon of increased COD and BOD5 values in the effluent from the is mostly…
A multi-media filter uses one or more filtering media to effectively remove suspended impurities from water and clarify it under a certain pressure by passing turbid water through a certain thickness of granular or non-granular materials. Common filter media include quartz sand, anthracite, manganese sand, etc. It is mainly used for pretreatment of water treatment,…
During the daily operation of the sewage system, why do the bacteria in the biochemical tank die? In addition, how do we determine the bacteria have died? Today, I will analyze the reasons and hope to be helpful to you. 一、Conditions affecting microbial bacterial growth Microbial bacteria are affected by factors such as pH, temperature,…
一、What is a sewage regulating tank? A sewage regulating tank refers to a structure used in wastewater treatment to regulate the flow of incoming and outgoing water. It is often used in industrial wastewater stations, industrial park sewage plants, and similar facilities. 二、How important is a sewage regulating tank? This is very important, especially for…
The main toxic effect of high concentrations of chloride ions on biological wastewater treatment is through the increased environmental osmotic pressure, which damages the cell membrane and enzymes inside microbial cells, thereby disrupting the physiological activities of microorganisms. Microorganisms grow well under isotonic conditions, such as in a NaCl solution with a mass concentration of…
When a sewage treatment facility is put into formal use, its biochemical treatment equipment needs to be inoculated and acclimatized (commonly known as commissioning). For larger-scale sewage treatment facilities, it is important to shorten the commissioning time as much as possible, so that the treatment process can be put into normal operation as soon as…
Dissolved air flotation (DAF) is an effective way of treating wastewater treatment. It is important to know how water is treated because everyone uses water. This knowledge helps you understand how the water that you use is cleaned. Process DAF process is achieved by removing solid suspensions from the wastewater using air. Air is dissolved into…
Air flotation methods can be divided into diffuse air flotation, dissolved air flotation (including vacuum air flotation) and electrolytic air flotation. It is currently used in water supply, industrial wastewater and urban sewage treatment. Compared with other solid-liquid separation equipment, air flotation equipment has the characteristics of less investment, minimal floor space, high degree of…
Wastewater treatment is a procedure of removing all the pollutants in the form oforganic matter and cleaning domestic water and sewage. Water is treated with the purpose ofreusing the water either by humans or animals or for any other purposes. Water discharged from houses. factories. orindustries is made to enter sewers.Waterfrom rains enters stormwater sewers. Water…