Comprehensive treatment method for blue-green algae sludge

Abstract

The invention relates to a comprehensive treatment method for blue-green algae sludge. By the method, the growth of blue-green algae can be effectively controlled. The comprehensive treatment method for the blue-green algae sludge comprises the following steps of: a, pumping water out of a lake; and b, throwing a blue-green algae sludge comprehensive treatment material into the lake, stirring to ensure that the material is combined with sludge at the lakebed, and hardening and coagulating the sludge, wherein the blue-green algae sludge comprehensive treatment material comprises aluminium sulphate salt, lime, gypsum, charcoal powder and a foaming agent; based on the total weight of the aluminium sulphate salt, the lime, the gypsum and the charcoal powder, the aluminium sulphate salt accounts for 60 to 65 percent, the lime accounts for 20 to 27 percent of lime, the gypsum accounts for 5 to 10 percent, and the charcoal powder accounts for 8 to 10 percent; and the foaming agent is added in an amount which is 10 percent based on the total weight of the aluminium sulphate salt, the lime, the gypsum and the charcoal powder. The blue-green algae can be treated together with the sludge at the lakebed by the method before the blue-green algae breeds like an explosion (namely the blue-green algae are at a spore stage), and the blue-green algae can be outrooted under the condition of isolating a new blue-green algae growth source.

Description

technical field [0001] The invention relates to a comprehensive treatment method for cyanobacteria sludge. Background technique [0002] The development process of natural lakes from oligotrophic to eutrophic, and then to swamps until they disappear is the natural law of lake development. The outbreak of blue-green algae promotes the accelerated development of this law. [0003] Taking Taihu Lake as an example, since the founding of the People's Republic of China, the control of blue-green algae has been carried out uninterruptedly in my country, and its means include: ① Artificial algae fishing. ②, covered with soil and sand. ③, "Introduce Changjiang to benefit Taihu Lake" (in 2005, my country diverted water from the Yangtze River to irrigate Taihu Lake), but none of them received obvious results. In 2007, there was finally a large outbreak of blue-green algae. Contents of the invention [0004] The invention provides a comprehensive treatment method for cyanobacteria ...

AI Technical Summary

Problems solved by technology

③, "Introducing Changjiang to Taihu Lake" (in 2005, my country diverted the water from the Yangtze River to irrigate Taihu Lake), but none of them received obvious results. In 2007, there was finally a big blue-green algae outbreak