Supply of full biological wastewater treatment plant for Stirling landfill site

Company : Stirling Landfill Site – Polmaise
Location : Scotland
Year : 2001
Description : Supply of full biological wastewater treatment plant for landfill leachate
Goal : Reduce Ammonia, COD, BOD and TSS
Capacity : 500 m3/day
Water Source : Landfill Leachate

The Problems :

  • The landfill leachate contained high levels of organic materials and ammonia.
  • The effluent contaminated the nearby water sources.
  • Anaerobic conditions created odor nuisance to the neighboring communities.

Technical Solution :

The following processes were carried out:

  • Nutrient Dozing and PH Adjustment.
  • Sequential Batch Reactor (SBR): A biological batch process which effectively removes in a few steps (each one with different oxygen conditions) ammonia and organic materials.
  • Filtration with a pressure filter using Actived Filter Media (AFM®) Grade 1, at 5 meters/hour filtration velocity
  • AFM® – Catalytic Media filtration with coagulation. A polishing stage which removes residual organic and mineral matter. This stage implements our air diffusers.

Results :

Parameter

Required Value

Before treatment

After treatment

Turbidity (NTU)

5

5

3

Ammonia (PPM)

5

1000

3

COD (PPM)

5000

5000

150

BOD (PPM)

2000

2000

7

TSS (PPM)

1000

1000

5

TOC (PPM)

1000

1000

10

Odor Issue

Minimize

Minimized

Similar Applications :

            Dryden Aqua’s aeration equipment & AFM® effluent filtration systems for landfill leachate SBR wastewater treatment system are also installed in:

Daily Capacity M3/day

COD In mg/l

COD Out mg/l

Ammonia In mg/l

Ammonia Out mg/l

Arden Quarry, UK

200

3000

250

700

<5

Binn, UK

200

2000

200

800

<5

Levenseat, Scotland

100

10000

500

2000

<5

Batlleby, Scotland

30

18

120

1200

<5


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