Combined type process method and device for cycling filtration, denitrification, dephosphorization and alae killing of polluted surface water

Abstract

The invention relates to a combined type device for cycling filtration, denitrification, dephosphorization and alae killing of polluted surface water. The device comprises a coagulation settling pond, a volcanic filter material filter reactor, a compound inorganic filter material filter reactor, an ozone contact pool and an activated carbon filter reactor. The method for purifying water quality by using the device is as follows: pumping the polluted surface water into the high-level coagulation settling pond, and removing most suspended matters and phosphorus as well as partial organic matters and alae substances under the action of coagulant; feeding the supernate in the coagulation settling pond into the volcanic filter material filter reactor so as to remove the partial organic mattersand nitrogen compounds; subsequently, entering treatment liquid into the compound inorganic filter material filter so as to remove the partial alae substances; feeding effluent into the ozone contactpool, thereby completing the processes of lysising algae cell by the ozone and killing the alae; after oxidation, feeding the treatment liquid into the activated carbon filter reactor so as to removesuspended matters, organic pollutants and nitrogen compounds; and directly feeding the effluent into a natural water system and / or a clear water reservoir. Thus, the purification treatment of the polluted water source can be achieved through reciprocating cycling filtration.

Description

technical field [0001] The present invention relates to a polluted surface water circulating filtration and purification treatment technology, in particular to the circulation filtration technology using coagulation sedimentation-volcanic rock filter material filter-composite inorganic filter material filter-ozone oxidation-activated carbon filter material filter reactor combination process . Background technique [0002] With the rapid development of society and economy, the increase in global water demand has led to the shortage of water resources in the world and the aggravation of water pollution. The demand for the utilization of recycled water resources and the improvement of urban water environment has become increasingly urgent, and the purification of polluted surface water is urgently needed. The research and development of technology is used to restore the functional requirements of rivers and lakes, improve the utilization rate of water resources in the basin and...

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to overcome the deficiencies in technicality and pertinence of existing coagulation-sedimentation technology, single filter material filter tank technology, ozone oxidation technology and other individual processes in the process of treating micro-polluted river water purification, and to provide a method comprising coagulation-sedimentation- Process method and device for combined circulation filtration and purification of polluted surface water from volcanic rock filter material filter reactor-composite inorganic filter material filter reactor-ozone oxidation-activated carbon filter reactor

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