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Microscopic Examination for the Operation & Control of Wastewater Treatment Plants. FULLY BOOKED

19th February 2018, Aqua Enviro Training Suite, Wakefield

NB.  This course is now fully booked.

Very few activated sludge plants have been completely free from foaming and bulking problems at some time and other plants suffer these problems on a routine basis. In a similar way poor solids removal, inefficient BOD removal, odour problems, inhibition and toxicity can all occur on a seemingly random basis. Routine sampling and chemical analysis from this is expensive, demanding and its interpretation is not always clear. By contrast microscopic examination of the microbial consortium in the treatment plant is simple, inexpensive and provides extensive information as to the likely causes of plant problems. The results can also be used to optimize the performance of the plant to ensure that effluent is as good as the plant is able to produce and that energy costs and sludge production are at a minimum.

Microscopy-book-cover .jpg

This paperback book with detailed contents of the training is given to all delegates.







The Protozoa

Introduction to floc morphology and protozoa

  • What are they?
  • What conditions do they like/dislike
  • What they tell us about the process conditions
  • Which protozoa are healthy for the plant

Lab session

  • Using the microscope
  • Floc structure
  • Protozoa identification
  • Filament numbers

Interpreting the results of microscopic examination

  • Health of the plant,
  • Changes that may have occurred in the influent,
  • Process conditions (F/M, sludge age),
  • Problems with the process (low O2, under/overloading,
  • Nutrient deficiency,
  • Toxicity

The Filaments

Filament identification

  • Filament characteristics on wet mounts
  • Cell size, shape, filament width, length, branching etc.
  • Staining, Gram, Neisser, sulphur

Lab session

  • Methods for identifying species
  • Filament characteristics on wet mounts
  • Identification charts
  • Stained filament characteristics
  • Gram and Neisser Staining

Control strategies for filamentous bacteria

  • Chemical and physical strategies
    • Chlorination
    • PAC
    • Spray jetting
  • Design considerations to eliminate filaments
    • selectors
    • floc loading
    • plug flow reactors

YOUR SAMPLES: We encourage those attending the Microscopy training to bring samples from their own sites to test here.  Please bring your sample of at least 50ml of activated sludge in a half filled water tight container – not more than a litre. If you are attending more than 1 day we can keep them in the fridge from when you arrive; it is still possible to identify some key things when the samples are not quite as fresh. Or if you want to arrange for colleagues to post/courier them to the office then that would be fine too.

TRAINERS:   Microscopic Examination for the Operation & Control of Wastewater Treatment Plants

Paul Lavender

Paul is a Chartered member of CIWEM and Chartered Scientist and Environmentalist and consultancy experience in water, wastewater and organic waste treatment since 2000.  Over this time he was worked on projects for clients in both the industrial and municipal sectors to develop treatment solutions. He has carried out microscopy for hundreds of sites to help with plant monitoring and process improvements and he brings a wealth of knowledge in the practical implementation of microscopy for tackling the most challenging of process issues.  He has been a regular presenter for the microscopy course since 2007 as well as having presented at many water  industry conferences and seminars.

Dean Herron 

Dean is a project manager specialising in providing waste treatment solutions for the industrial sector.

He has also gained substantial experience in aerobic and anaerobic wastewater treatment technologies, having managed several laboratory and piloting studies, site optimisation and troubleshooting studies and more recently project managed the commissioning of a large-scale anaerobic digestion and sludge processing facility at Riverside STW, Rainham.

Working with technical experts at Aqua Enviro, Dean has developed a refined lithium tracer method for the quantification of mixing efficiencies and active zones in anaerobic digesters. This has been successfully applied to several anaerobic digesters, activated sludge plants and anoxic selector zones.


9 Appleton Court, Calder Park, Wakefield, WF2 7AR   For more details please see the leaflet Aqua Enviro Events Suite Travel Information that you can download above on the left hand side.


Training will begin at 9.30 am with tea and coffee available from 9.00 am.  There will be two tea breaks and a break for lunch (which is provided), the day finishes around 5.00 pm or a little before.

Delegate Rates

1 delegate = £350 (+VAT) = £420
2 delegates = £320 (+VAT) = £382 per person
3 or more delegates = £300 (+VAT) £360 per person

These discounts can be applied for multiple bookings for any of the training courses we offer.

The course is now FULLY BOOKED.
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