Generally, the water is collected from a water source close the refinery and, after the adequate treatment, distributed to consumption according to the final application. Normally, the use of water in a refinery is divided as water to fight emergencies, clarified water, industrial water, potable water, and demineralized water. Figure 1 presents a simplified diagram…
Dissolved air flotation is a common sewage treatment equipment, which has a good impurity removal effect for sewage with floating objects in the water body. Therefore, it is recognized by manufacturers in all walks of life that need sewage treatment. But after all, the air flotation machine is also a mechanical device, and it is…
If in the process of using the dissolved air flotation equipment, it is found that there is a lot of sludge inside, and many people think that they can add an appropriate amount of lime and ferrous sulfate to clean the sludge inside, then what else can be done besides this method? The way to…
Objectives of WWT Reduce organic content (reduction of BOD), Removal/reduction of nutrients i.e, N,P and Removal/inactivation of pathogenic microbes. What is Wastewater? Dairy and industrial waste–slaughterhouse waste, dairy waste, tannery wastewater, etc. Domestic waste: human and animal excreta and waters used for washing, bathing, and cooking. 100-500 g wet weight of feces and 1-1.3 L…
Because the aquaculture wastewater has certain characteristics, the concentration of suspended solids is very high, and the suspension has a great influence on the biochemical system, so an air flotation separation device is installed at the front of the biochemical tank to remove suspended solids. The back end of the anaerobic system is equipped with…
Characteristics of aquaculture sewage: The organic matter concentration is high, the suspended solids are many, and the color is deep. The NH3-N concentration is very high due to the large amount of animal feces, and it contains a large number of pathogenic bacteria. The pollutants in the sewage mainly exist in the form of solid…
With the development of animal husbandry, the discharge of livestock wastewater is increasing, and the negative impact on agricultural ecological environment and water environment is becoming more and more serious. Pig farm sewage is mainly a mixture of pig excreta (pig urine and part of pig manure) and pig house flushing water. Pig farm sewage…
High-efficiency ultra-atomization dissolved air flotation is a series of ultra-atomized dissolved air flotation products specially developed for advanced sewage treatment (including terminal phosphorus removal), reclaimed water treatment, and micro-polluted water source treatment. High-efficiency ultra-atomization dissolved air flotation has low effluent SS, low effluent TP, high dissolved air rate, high gas release efficiency, no blockage, good…
The degree of contamination of wastewater is characterized by the amount of mineral, organic and bacterial materials solved or unsolved in the water. Wastewater is treated by mechanical, chemical, physical or biological methods. Biological processes involve oxidation of organic substances in waste water in the form of suspensions, colloids and solutions by microbes. There are…
Slaughterhouse wastewater is the wastewater generated during the slaughtering and processing of livestock, which mainly contains high concentrations of nitrogen-containing organic compounds, suspended solids, dissolved solids, grease, protein, blood, minced meat, food debris, hair, feces and sediment etc, and may also contain a variety of bacteria harmful to human health. If direct discharge will cause…