I cannot find anything on ...

Published March 18, 2019 19:24 by Richard Bleam, Director of Technical Services

I cannot find anything on Biograde 31. Who makes it? Does it have a specification for what is in it? Many microbial products are on the market that claim to reduce BOD, COD, TSS etc. but unless the microbes are appropriate for the types of organics in your process, they may be worthless. You need to measure the mixed liquor suspended solids (MLSS) in your SBR to see if the bugs are growing (increasing MLSS). If the bugs are not flocculating they may be washing out. A pH increase must be indicating biodegradation of organic acids (the salt form, e.g. Na acetate) or nitrate reduction. Have you tried reducing or eliminating the anoxic phase?

2 Comments

hi Richard, I have no idea who makes this biodegrade 31. but not all microbes grow will increase MLSS. some sets do eliminate sludge and these keep the mlss low.

Published March 19, 2019 07:04 by Eros Kaw, Biocleaner Inc. - Chief Tech Support

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We have been using this biograde 31 all this time. Our previous data shows that it can efficiently decrease COD and BOD.

We increased aeration cycle but didn't eliminate anoxic phase as we need it for settling.

We are sending our wastewater sample to lab today. Let's see how's the result.

Thanks for the info, it's really helpful.

Published March 19, 2019 01:31 by Sin Tian Ong, Employee at konta

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