Method of fast oxygen enrichment in black-odor riverway by means of chlorella

Abstract

The invention discloses a method of fast oxygen enrichment in a black-odor riverway by means of chlorella. The method comprises the following steps that chlorella culture and expanding propagation areconducted, wherein in a transparent container, the chlorella is inoculated according to the volume ratio of the chlorella to a SE culture medium of 1 to (50 to 60), the transparent container is placed in the sun for culturing for 48 hours, and stirring is conducted every 13 hours; the chlorella after propagation is put into the riverway which needs to be treated, wherein the input ratio is that 5-10 ml of propagation liquid is added into per cubic metre of a water body. The method has the advantages that by using the characteristics of the chlorella of fast reproduction and strong photosynthesis, the dissolved oxygen content in the black-odor water body can be fast improved, black-odor water body treatment time is shortened, the use frequency of aeration equipment is reduced, the method is relatively energy-saving and environmentally friendly, and ecological remediation of the black-odor riverway is achieved.

Description

technical field [0001] The invention belongs to the field of water treatment, and in particular relates to a method for quickly increasing oxygen in black and odorous river courses by using chlorella. Background technique [0002] Black and odorous water is an extreme manifestation of organic pollution, which is caused by the lack of oxygen in the water and the corruption of organic substances. When a large amount of organic pollution enters the water body, the biochemical action of aerobic microorganisms consumes a large amount of oxygen in the water body, turning the water body into an anoxic state, causing a large number of anaerobic bacteria to multiply, and the organic matter decays, decomposes, and ferments to turn the water body black. stink. At present, the treatment of black and odorous rivers mainly relies on aeration to increase oxygen to alleviate the phenomenon of insufficient dissolved oxygen in black and odorous water. However, it is a long-term and slow proc...

AI Technical Summary

Problems solved by technology

At present, the treatment of black and odorous rivers mainly relies on aeration to increase oxygen to alleviate the phenomenon of insufficient dissolved oxygen in black and odorous water. However, it is a long-term and slow process to increase oxygen in black and odorous rivers through aeration equipment, resulting in high cost and high energy consumption. Big, slow to take effect