Plant nutrient water recycling system

Abstract

The invention provides a plant nutritive water circulation use system and solves the problems that the heavy metal pollution cannot be reduced through existing water circulation use systems, and the fertilizer utilization rate is low. A raw water pool is connected with a clarification pool through a raw water pump and a pipeline, the upper end of the clarification pool is connected with an overflow chamber through an overflow weir, a barrel-shaped inner cover is arranged in the middle of the clarification pool, the upper end of the inner cover is connected with an agitator, a flocculating agent measuring tank and a first pH adjusting agent measuring tank, the lower end of the inner cover is communicated with flocculating agent calandria, the overflow chamber is connected with a multi-media filter through a clean water pump and a pipeline, the multi-media filter is connected with a reverse osmosis membrane separator, the reverse osmosis membrane separator is connected with a nutritive water pool, a urea measuring tank, an ammonium dihydrogen phosphate measuring tank, a potassium chloride measuring tank, a second pH adjusting agent measuring tank which are arranged over the nutritive water pool are connected with rotational flow comminglers in the nutritive water pool respectively, the nutritive water pool is connected with a nutritive water chamber through a baffle, the nutritive water chamber is connected with automatic irrigation machines through a nutritive water pump and pipelines, the automatic irrigation machines are distributed in an irrigation field, bitter water furrows are formed in the irrigation field and connected with a bitter water well, and the bitter water well is connected with the raw water pool through a bitter water pump and a pipeline.

Description

Technical field: [0001] The invention relates to a system for recycling plant nutrient water and improving soil fertilizer efficiency, in particular to a system for recycling polluted water and field nutrient water. technical background: [0002] 1. At present, 34.88 million mu of land in Guizhou, Jiangxi, Fujian and other southern parts of China has been polluted by heavy metals, generally lead, zinc, copper, silver, cadmium, chromium, arsenic, selenium, mercury and other heavy metals, causing them to be polluted by waters. In the area where cancer is common after drinking, the heavy metals contained in the plants in the polluted soil seriously exceed the standard. There is an urgent need to speed up the treatment of polluted water and soil. It is necessary to strengthen the control of fresh water quality, irrigate the soil with cured fresh water quality, dissolve and reduce the heavy metals in the soil, reduce the harm to animals, plants and people, and avoid damage to the...

AI Technical Summary

Problems solved by technology

[0005]The existing saline-alkali land improvement methods cannot maintain long-term stable effects, and tens of millions of acres of saline-alkali land urgently need "a scientific method" to improve and increase the quality of soil and fields land

[0006]3. At present, more than 70% of the vast rural areas in my country are fertilized, and dry fertilizer and concentrated solution are used for irrigation, so that the fertilizer utilization rate cannot reach 30%.

The use of a single fertilizer accounts for more than 60%, and it is not irrigated according to the pH of the soil, the degree of fertilizer efficiency and the amount of fertilizer required by the plant for a long time. It is difficult to increase the planting yield. In some areas with little rain and fresh water, the soil salinization bias has appeared.

[0007]It is urgent to adopt the method of water and fertilizer integrated irrigation to solve the current situation of low fertilizer utilization rate. Using water and fertilizer integrated plant nutrient water irrigation is the best method at present

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