Foundation pit yellow water treatment device

Abstract

The invention relates to a foundation pit yellow water treatment device; a foundation pit yellow water gathering pipe is connected with the top of pretreatment equipment for yellow water to enter, the bottom of the pretreatment equipment is connected with a water inlet pump through an inlet pipe, the water inlet pump is connected to the top of a catalytic reaction tower through an outlet pipe, and the bottom of the catalytic reaction tower is connected with the top of a biochemical reaction tower through a water outlet pipe; the bottom of the biochemical reaction tower is connected with a clean water tank through a clear water pipe; the clean water tank is externally connected with a drain pipe; an air inlet main pipe is connected with an air outlet main pipe by a vortex air pump, the air outlet main pipe is respectively connected with the pretreatment equipment, the catalytic reaction tower and the biochemical reaction tower; the bottom of the clear water tank is also connected with a cleaning pump through an inlet clear water pipe; and the cleaning pump is respectively connected with the bottom of the catalytic reaction tower and the bottom of the biochemical reaction tower through outlet clear water pipes, and the bottom of the catalytic reaction tower and the upper part of the biochemical reaction tower are connected with the top of the pretreatment equipment. The device is high in process adaptability, low in operation cost, good in economical efficiency, capable of meeting the processing capacity, controllable in index and high in resource utilization rate.

Description

technical field [0001] The invention relates to a water treatment device, in particular to a foundation pit yellow water treatment device. Background technique [0002] In recent years, with the construction of high-rise buildings, while meeting the needs of social and economic construction, a large amount of foundation pit yellow water has also been produced. The foundation pit yellow water contains a large amount of sulfate, iron ions, manganese ions, calcium ions, magnesium ions, Ammonia nitrogen, suspended solids, and organic matter, etc., have high turbidity and chromaticity. The ionic component is the product of dissolved mineral salt in water. Ammonia nitrogen is the reduction of nitrate to nitrite and ammonia under the action of microorganisms under anaerobic conditions, resulting in an increase in ammonia nitrogen. , sulfate and suspended solids are the sand exploration companions in the process of pumping yellow water from foundation pits. A large number of pollut...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the pollution and waste of yellow water in foundation pits and the low elimination rate of pollutants such as sulfate, iron ions and other inorganic salts, ammonia nitrogen and organic matter in the application of existing technologies, secondary pollution and operating costs caused by dosing High, low processing capacity, resource waste, etc., the present invention provides a foundation pit yellow water treatment device with strong process adaptability, low operating cost, good economy, satisfactory processing capacity, controllable indicators and high resource utilization

Images