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10. Decomposition of Mineral Oil

For waster water from general kitchens, ME-Bio remains effective for several months after it is put in the grease trap pit as shown in Photo 7 (previous page). The same is true with sewage tanks in a building or large aerators in a factory, with the only difference being the increased amount of ME-Bio loading. Bad value are improved to a startling degree. Simple test with aeration such as shown in Photos 8 and 9 is recommended before full loading of ME-Bio.

Photo 8		Photo 9

ME-Bio underwent "LC50: Acute Toxicity Test Using Himedaka (a variation of Medaka)" verifying no influences on medaka (killifish) in 1997, as well as "EC50: Activated Sludge Respiration Inhibition Test" verifying that no factors inhibiting good microbes existing in activated sludge in 1997.

It has been believed that mineral oils defy biological decomposition because of the preservative contents. In reality, ME-Bio successfully converts organics into inorganics in environments such as shown in Table 1. This is the lure of aerobic good microbes.

Table 1
	pH	SS	COD	Mineral oil	Animal and vegetable oils	Hexane	(Unit: mg/L)
(1)	5.9	9300	1300	1400	920	2300	(1): Waste oil; before test. Photo 8
(2)	7.1	940	770	760	520	1300	(2): After 72 hr; ME-Bio only. (Left-hand bottle in Photo 9)
(3)	7.0	780	780	360	240	600	(3): After 72 hr: ME-Bio, plus air-activation electron waves* radiated on specimen material. (Right-hand bottle in Photo 9)

Environmental issues are to reduce emissions of harmful chemicals and particles. We have to begin with what we can do. The goodness of aerobic good microbes is that they can be applied or used too much without causing trouble, and there is no statutory regulation. This is because they are part of air, suspending around us.

Authored by Yasuo Sakakura President, ASAHI INC.