Low-energy-consumption sewage treatment system based on energy conservation and environmental protection

Abstract

The invention discloses a low-energy-consumption sewage treatment system based on energy conservation and environmental protection. The sewage treatment device comprises a sewage pipeline, a filteringdevice arranged on the sewage pipeline, a plurality of sealing devices arranged on the sewage pipeline and matched with the filtering device, a plurality of fixing devices arranged on the filtering device, a cleaning device arranged on one side of the sewage pipeline and a dismounting device arranged on the other side of the sewage pipeline. The filtering device comprises four openings formed inthe side wall of the sewage pipeline, four rotating shafts arranged on the side wall of the sewage pipeline, and a plurality of filtering nets arranged on the rotating shafts in a sleeving manner. Thefour openings and the multiple filter screens are arranged in a matched mode, motors are arranged in the four rotating shafts, and the multiple filtering nets are of an end-to-end connection structure. Through the arrangement of the filtering net and the rotating shafts, the long-term clean effect of the filtering net can be ensured without always starting the filtering device in the sewage pipeline, the energy consumption of sewage treatment is reduced, and the sewage treatment effect is improved.

Description

technical field [0001] The invention belongs to the technical field of sewage treatment, and in particular relates to a low energy consumption sewage treatment system based on energy conservation and environmental protection. Background technique [0002] With the development of the economy and the advancement of urbanization, the discharge of industrial sewage and domestic sewage is also increasing year by year. Generally, there are many enterprises around the rivers in the city, including leather factories, waste engine oil processing factories, electroplating factories and other heavily polluting industries. These enterprises are basically heavy polluting enterprises, such as leather wastewater, with large fluctuations in water quality and quantity, high concentration of suspended solids, easy corruption, large amount of pollution, and wastewater containing toxic compounds such as nitrogen, phosphorus, sulfide and cadmium. The oil spill from the waste engine oil factory a...

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Problems solved by technology

The oil spill from the waste engine oil factory also pollutes the water very seriously. Basically, every 1L of engine oil can pollute an area of ​​100,000 square meters of water, causing the water to be closed and hypoxic, and the natural degradation cycle of oil pollution is very long; electroplating wastewater not only has acid Alkali changes, and if the treatment is not thorough, it will contain pollution such as cyanide, ammonia, salicylic acid, and heavy metals

The pollution of these ammonia nitrogen, sulfide, heavy metals, etc. will not only directly pollute the water body, but also because many of these pollutants are biologically toxic, fundamentally destroy the ecological balance of the water body

In addition, the domestic sewage of nearby residents is not in place due to the lack of comprehensive domestic sewage pipe network, domestic pollution will also be discharged into the inland waterway, which also seriously affects the self-purification ability of the water body

[0003] In the sewage treatment system, the sewage will be filtered and processed for many times. The initial filtration is generally to remove solid particles and other dirt in the sewage through the filter, but the filter needs to be cleaned or replaced from time to time. For the equipment The energy consumption is very large, and it also increases the workload of the staff, and it is impossible to ensure that the filter screen is in a clean state for a long time, which affects the subsequent sewage treatment effect

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