english 1. Equipment operating power
The main energy-consuming components of shallow air flotation equipment include dissolved air system, aeration system and scraper. The dissolved air system needs to use a water pump to pressurize water into the dissolved air tank and fully mix it with air to form dissolved air water. The power of the water pump directly affects the energy consumption. Generally speaking, the larger the amount of water to be treated, the higher the required water pump power, and the energy consumption increases accordingly. For example, for a shallow air flotation equipment with a treatment scale of 50 cubic meters/hour, the power of its dissolved air water pump may be around 5-10 kilowatts. The aeration system provides tiny bubbles for the flotation process, and usually uses a blower for aeration. The power of the blower is determined according to the size of the flotation tank and the aeration intensity, generally ranging from 3-10 kilowatts. The scraper is used to collect and discharge scum, and its power is relatively small, usually around 1-2 kilowatts.
2. Operation time
The operation time of the equipment is also an important factor in determining energy consumption. If the sewage needs to be treated continuously, the shallow flotation equipment needs to run 24 hours a day, and the energy consumption is naturally high. However, if the amount of sewage fluctuates, the equipment operation time can be adjusted according to the actual situation. When the amount of sewage is small, the operation load can be appropriately reduced or intermittent operation can be performed, which can effectively reduce energy consumption.
3. Treatment water quality and process parameters
Different water quality also affects the energy consumption of shallow flotation. If the concentration of pollutants in the sewage is high, more dissolved air water and aeration are required to achieve flotation separation, and energy consumption will increase. In addition, some process parameters in the flotation process, such as dissolved air pressure, aeration intensity, residence time, etc., will also affect energy consumption. Reasonable adjustment of these parameters can reduce energy consumption while ensuring the treatment effect. For example, by optimizing the dissolved air pressure and aeration intensity, the flotation effect can be optimized while avoiding unnecessary energy waste.
In general, the energy consumption of shallow flotation varies depending on the specific equipment model, operating conditions and treated water quality. In practical applications, by rationally selecting, optimizing operating parameters and strengthening equipment management, its energy consumption can be effectively controlled to achieve economical and efficient sewage treatment.
