What is the major advantage of three-tire vermi-culture technology?

What is the major advantage of three-tire vermi-culture technology? Correct Answer It can be applied to both solid and liquid wastes

The three-tire vermi-culture technology developed by biotechnology resource center is so inexpensive with respect to the conventional method. Also, the operational costs are negligible. But the major advantage is it can be applied to both solid and liquid wastes. It doesn’t involve chemical treatment and degradation of organic wastes is not a specialty of vermicomposting.
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