Aims to The concentration of the waste water from the kitchen of the school. The intensity of the light The effect of increasing the amount of phosphorus by the addition of Pau potassium hydrogen orthophosphate (K2HPO4) at various concentrations. The growth of algae, chicken or barbecue Spirogyra sp., And the results of its use as an ingredient in the growth of catfish found water at concentrations of 20 percent can increase the biomass of algae trigger spirogyra sp. Well. by a biomass feed after a rise of 19.68 ± 0.02 g biomass was 9.68 ± 0.02 g after raising DO measurement was 0.97 mg / liter. Turbidity was 1.08 ± 0.01 NTU and the spread area is 67.39 ± 0.01 percent after raising the culture period one week
and found. The party under natural light from the lamp with the light intensity in lux -1036.80 850.53 for one week can increase biomass collected from 16.63 ± 0.02 grams and has spread to the area after the feed was 71.21. ± 0.01 percent, increasing the amount of phosphorus with the addition of the Expo potassium hydrogen orthophosphate (K2HPO4) 1 mg in culture resulted in the production of biomass of algae increased the most, namely an increase of 18.04 ± 0.01. g proliferation area after the parties were 72.35 ± 0.01 percent and catfish fed a mix of algae trigger spirogyra sp., with an average growth of more than fish fed a mix of algae trigger spirogyra sp. by. average weight later increased weight was 8.13 ± 0.04 grams of fish fed with food that does not contain algae trigger spirogyra sp., with an average weight after rearing up from the original weight 3.66 ± 0.04 g of the biomass of algae trigger spirogyra. sp., from cultivation with water from the kitchen can be used to feed the fish and helps the healing quality of the water used to feed better with
the keyword biomass algae trigger spirogyra sp. sewage.
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