Method for treating algae breeding wastewater
A technology for breeding wastewater and algae, applied in chemical instruments and methods, animal husbandry wastewater treatment, biological water/sewage treatment, etc.
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[0020] Example 1
[0021] The method for treating aquaculture wastewater by using algae provided in this embodiment specifically includes the following steps:
[0022] (1) Cultivating algae cells;
[0023] (2) Preparation of fixative;
[0024] (3) Mix the algae cells with the fixative;
[0025] (4) Immobilize algae cells to make algae pellets;
[0026] (5) The algae pellets propagated in the liquid culture medium are connected to the aquaculture wastewater for wastewater treatment.
[0027] Step (1) specifically: enrich and cultivate microalgae in seawater F / 2 medium, with an initial inoculation density of 1×10 5 A·mL -1 , The light intensity is 1300lux, the temperature is 18-25℃, and the relative humidity is 70%~80% in an artificial climate box for 1-3 weeks, and the algae solution is centrifuged.
[0028] Step (2) specifically includes: configuring a sodium alginate solution with a concentration of 1-2%, and fully dissolving it by autoclaving at 121°C for 20 minutes.
[0029] Step (3) is ...
Example Embodiment
[0032] Example 2
[0033] The method of Example 1 was applied to aquaculture water bodies in fish ponds, and the changes in the content of total nitrogen and total phosphorus and the removal rate were determined after the immobilized algal cell pellets were added.
[0034] It can be seen that the immobilized algal cell pellets prepared by the method of the present invention can quickly and effectively remove total N and total P in fish pond water. The removal rate of TN can reach over 80%, and the removal rate of TP can reach 90%. the above.
[0035] Before adding (mg / L) After adding (mg / L) Removal rate% Total N8.931.4583.8 Total P 1.210.1190.1
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