Saline alkali soil treatment agent prepared from pyrolytic bio-oil

Abstract

The invention provides a saline alkali soil treatment agent prepared from pyrolytic bio-oil. The saline alkali soil treatment agent is prepared from the following raw materials in parts by weight: 10-30 parts of clear water, 50-80 parts of pyrolytic bio-oil, 0.1-2 parts of an emulsifying agent, 3-8 parts of urea, 0-6 parts of potash fertilizer and 0-8 parts of phosphate fertilizer. The production process comprises the following steps: adding the bio-oil into a reactor according to the raw material proportion, and heating to 50-95 DEG C; adding urea, stirring and reacting for 15-80 minutes at a rotating speed of 20-200 revolutions / minute; adding the emulsifying agent, the potash fertilizer and the phosphate fertilizer, and uniformly stirring; intensively stirring and emulsifying with water to form a uniform mixed solution; and separating insoluble substances with a centrifugal filter after the reacting process is completed, wherein the filtered reacting liquid is the saline alkali soil treatment agent.

Description

[0001] 1. Technical field [0002] The invention provides a salinized soil treatment agent prepared by pyrolyzing biological oil, relates to the purification and treatment of degraded soil, and in particular relates to a salinized soil restoration preparation and a production method of the restoration preparation. [0003] 2. Background technology [0004] According to incomplete statistics from UNESCO and FAO, the area of ​​saline-alkali land in the world is 954.38 million hectares, of which 99.13 million hectares are in my country. The formation of alkaline soil and alkalized soil in my country is mostly related to the accumulation of carbonate in the soil, so the degree of alkalization is generally high, and plants in severe saline-alkali soil areas can hardly survive. [0005] All kinds of saline-alkali soils are formed under certain natural conditions. The essence of their formation is mainly the redistribution of various soluble salts in the horizontal and vertical direct...

AI Technical Summary

Problems solved by technology

However, mineral humic acid is the main source of humic acid products at present. Due to the low content of effective components in raw materials and the solidification of active functional groups, it needs activation and purification, consumes more alkali and acid, produces a large amount of high-concentration organic wastewater, and has high production costs. How to prepare high-activity liquid humic acid from mineral humic acid raw materials at low cost has become the key and difficult problem for humic acid to quickly and permanently repair saline-alkali land

[0007] Pyrolysis bio-oil contains more than 40% oxygen, high acidity, high viscosity, and only half the calorific value of petroleum fuel oil. In the current situation where the national crude oil price has plummeted, it does not have a competitive advantage as fuel oil, but pyrolysis bio-oil The oil is rich in active functional groups such as carboxyl, phenolic, ketone, and phenolic hydroxyl groups. It is a low-cost, high-quality humic acid resource that does not require activation treatment. It is urgent to develop a large-scale utilization of pyrolysis bio-oil with high added value