Hydroponic soils for cultivating meat and growing plants in freshwater, filter media and tanks using them

摘要

The present invention relates to a soil, a filter medium and a water tank using the same, which are capable of maintaining a proper pH value in breeding meat and growing hydroponic plants in fresh water.;The base soil is composed of a bottom soil and a filter agent which are mixed with alkali metal or alkaline earth metal carbonate in a volcanic ash component soil and sintered in powder form.;Water is supplied into the rotating rotary pipe to continuously mix a mixture of volcanic ash soil and alkali metal carbonate or alkali earth carbonate in the form of mud from the basket, and drop downward in turn by gravity, and the rotation By heating a pipe using heaters, such as a burner, the raw material used as a soil or filter medium can be obtained.