Friday, 17 August 2012

Industrial Effluent Treatment

Finished the pesticide manufacture effluent treatment course yesterday - I learned a lot myself from the last days' detailed discussions of problems at a number of the client's sites.

We had a new enquiry yesterday to design a number of plating effluent treatment plants - industrial effluent treatment seems to be the thing which is providing most of my new business at present

Our recommissioning of the misbehaving package plant continues (new test results tomorrow), as does our evaluation of bids for a truck wash effluent treatment plant.

Monday, 13 August 2012

Problems with Fats, Oils and Greases in Packaged Effluent Treatment Plants for Restaurant Effluents

I've been faced recently with a problem which I looked into right back at the start of my career : Fats, Oils and Greases (FOGs) in catering establishment effluent.

Having cleaned out the historical contamination at the Indian restaurant site, we are seeing some evidence of fresh breakthrough of cooking oil onto the Titan biological treatment plant, despite previous sampling data suggesting very low FOG levels in effluent from the fat trap.

Titan units are quite intolerant of fats, oils, and greases, and consequently we are investigating ways to enhance the operation of the grease trap/oil water separator upstream of the unit by means of chemical dosing.

We are not proposing to use any of the proprietary systems which use enzymes or bugs to supposedly enhance oil removal, as our prior experience with such systems is not favourable. We have seen them used too often as an add-on proprietary product by inexpert system installers with no understanding of the root causes of problems, which might be why we have seen them cause far more problems than they have solved.

Other than that, I am spending my day tweaking tomorrow's course on effluent treatment in pesticides manufacture.

Thursday, 2 August 2012

Interesting Stuff

Technician Looking at Packaged Effluent Treatment Plant Sample Analysis

We've taken on a summer intern (one of my MSc students at Nottingham) who will be carrying out sampling and inspection for the Indian restaurant job we did recently to monitor improving performance as the bugs grow up.

Her first visit is tomorrow, it'll be interesting to see how much improvement has occurred in the two weeks since we recommissioned it.

We have still more new enquiries: two new tender assessments, another expert witness job, and a really interesting industrial effluent treatment enquiry.

The order is in for one of the tender assessments, looking at two alternative approaches for treatment of truck wash effluent from two companies of very different size and track record. Just waiting on answers to my questions.