Facility and method for adjusting pH value of grass-type lake water

Abstract

The invention relates to the technical field of water treatment and discloses a facility for adjusting the pH value of grass-type lake water. The facility comprises a water supply adjusting pool and apH adjusting device, wherein the water supply adjusting pool is provided with a water intake, a circulating water pump and a water supply pipe, the water intake is located at the bottom of the watersupply adjusting pool and communicates with a lake, an inlet of the circulating water pump is connected to the interior of the water supply adjusting pool, an outlet of the circulating water pump is connected with the water supply pipe, and the water supply pipe extends into the lake; and the pH adjusting device comprises a static mixer, a mixed water pump and a carbon dioxide gas source, the static mixer is provided with a water inlet, a gas inlet and a gas-water mixed liquid outlet, the water inlet is connected with an outlet of the mixed water pump, the gas inlet is connected with the carbon dioxide gas source through a gas inlet pipe, the gas-water mixed liquid outlet extends into the water supply pipe, and an inlet of the mixed water pump is connected to the interior of the water supply regulating pool. The facility has the advantages that a carbonate solution is added through the water supply pipe, so the concentration of carbonate in the water is uniform, the change of the pH value of an adjusted water body is alleviated, and severe disturbance to environmental factors of the water body is avoided.

Description

technical field [0001] The invention belongs to the field of lake water treatment, and in particular relates to a pH adjustment facility and method for grass-type lake water. Background technique [0002] In recent years, there have been many reports on the causes of abnormally high pH values ​​in lakes and reservoirs, and it is generally believed that it is closely related to the occurrence of algae blooms. At present, most shallow pond-type reservoirs in China have seasonal algal growth and trophication. Algae photosynthesis consumes a large amount of carbon dioxide, captures carbon dioxide from carbonate, and forms calcium hydroxide, which increases the pH. At present, there are two main methods to deal with the high pH value of the water body. One is to add coagulant appropriately, and use its strong acid and weak alkaline salt properties to reduce the pH of the water body; the other is to directly add it to the water body. industrial acid. It is difficult to dissolve ...

AI Technical Summary

Problems solved by technology

It is difficult to dissolve the coagulant quickly; the uneven concentration of the water body leads to uneven concentration in the water body, which greatly disturbs the water body; adding industrial acid, because industrial acid is a dangerous chemical product, there are potential safety hazards, and both methods require a large amount of investment Spraying pesticides at labor costs, local acidity is too high after spraying, seriously affecting aquatic animals and plants

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