Friday, 26 May 2017

Effluent Treatment Process Plant Design Based On Water Quality Analyses

I spent today doing a conceptual design for a bespoke effluent treatment plant based upon analysis of effluent at the site over a week of normal running.

The new plant is a replacement for a standard package plant which was installed at the site, and the analysis makes clear why the package plant doesn't work. The effluent at the site is simply nothing like the domestic sewage such plants are designed to treat.

Package plants don't like fats, oils, and greases, nor do they like detergents, biocides, or other inhibitory chemicals. They really only like domestic wastewater. Mostly sewage, with a bit of bathwater, and some laundry. Lab wastes are not really their thing. 

Friday, 12 May 2017

Water Quality Analyses for Effluent Treatment Plant Design and Troubleshooting

I've just submitted a final report on one of the industrial effluent treatment plant jobs I have on the books, and I am awaiting lab results for the second.

I've been making progress with my new book on water and effluent treatment plant in the meanwhile, and I was in at Manchester teaching water treatment earlier in the week.

I was also elected to the ruling council of the Institution of Chemical Engineers this week, which will  add a little to the workload. 

Friday, 5 May 2017

I Love Real Engineering

Picture of Water Engineering Expert going "Noooooooooooooooooooh"

















I like teaching and writing books, but I really love solving practical problems for people. I've just got  a new order to negotiate with the Environment Agency, and design a replacement plant to match a revised consent to discharge for a plant treating laboratory chemical waste.

Once again, I have been preceded by cheaper, less expert "engineers" and consultants. As my father in law says, "you buy cheap you buy twice". In cases like this, it is however rarely twice. I'm probably on average the fourth person to look at a problem.

A guideline: "Cheap", "local", and "family-run" are not in my experience recommendations for companies operating in this area.