Aquaculture sewage purifier using large-sized algae as fillings

Abstract

The invention relates to a cleaning device for cultivating wastewater by employing macroscopic algae as filling material; the cultivating device comprises transparent glass boxes stacking with each other with volume shortened layer by layer from bottom to up, the back of glass box employs sunlight as light source, the top of every glass box is equipped with water inlet pipe and bottom with water outlet pipe, which is the water inlet pipe for the next glass box, the water outlet pipe of the bottom glass box is connected with main water outlet pipe, the top glass box is connected with main water inlet pipe, refrigerating pump and water pump are equipped in the pipeline between the main water outlet pipe and main water inlet pipe. The cultivating wastewater flows into the upper glass box from the main water inlet pipe and contacts with algae completely, the metabolism and photosynthetic oxygenation action of the algae will be carried out thoroughly on the condition of using sunlight as light source and aerated by air pump, which can adsorb large quantity production factors such as C,N and P to enrich the nutriment stock, the wastewater will be cleaned by the algae in the middle and bottom of the glass box, and at the same, the photosynthetic oxygenation action will increase the dissolved oxygen in seawater to improve water quality.

Description

technical field [0001] The invention relates to a large seaweed fixed culture device for purifying mariculture sewage, in particular to a photobioreactor for three-dimensional and intensive cultivation of large seaweed to purify the culture sewage. Background technique [0002] In recent decades, high-density breeding of marine animals and factory aquaculture have flourished all over the world. Factory farming is high-density and temperature-controlled farming in a specific space. Under this condition, feeding high-protein fish Compound feed, animal excrement and residual bait are deposited in the water, and are rapidly decomposed by microorganisms under suitable conditions, which will deteriorate the water quality and ecological environment of the breeding pond. Once the water quality deteriorates, the feeding and growth of the breeding organisms will be seriously affected, and even lead to Poisoning, disease and death occurred. At the same time, industrial aquaculture wil...

AI Technical Summary

Problems solved by technology

At present, the reactors used for mass and high-density culture of microalgae have been relatively mature, while the reactors for fixed culture of macroalgae have not been reported.

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