Leighton Linslade

 

Leighton Linslade   230 l/s

Josh Cartwright

Angus Outram

Gareth Stewart EPS

Ollie Weir.

4mg/l Fe, P 0.25mg/l

Dual Stream

Inlet → Scrapers → 0000 TF and Ditch via letterbox splitter

            ↓    

        Sludge 

→ HSTs → FE

SAS – not usually co-settled

in primary

High P ~ 4 mg/L

so ceased co-settling

→ More sludge – thinner

more watery

P consent is 2 mg/L annual

average OSM

Fixed dose Ferric

would be better to be

flow proportional.

Thin sludge – too much

Thickener was PFT NOW SHT - fix to reduce sludge volume and so tankering

5 Arctics a day for sludge movement : £30-40k a month

100 m³/day of sludge –

needs moving or cannot 

desludge PSTs ammonia off ditch → 8 mg/L 

– Need a thickener – Belt or Drum

P scheme will include

Enough Sludge Storage

for additional that

Scheme produces only.

2 disused digesters

– Solid concrete tank –

available for expensive

repurposing.

Naylor / Heather + Ops / Capital team.

→ Opportunity to work together

combined with P Scheme

Chemical dosing post EoWL.

2 x 30 m³ tanks, 30–40 yr old.

(Old) Shower with potable feed.

Need a TSR – there is

space on site. Could use

old SF/UV building.

Kris Still

21-day batch tanks have been

repurposed to storm tanks.

Huns, Retains well P/S

On corner of Big Road

Recirc Huns tank to head

of works to improve

TN / ammonia. Trim dosing

• mag abs into here

Notes:

• THt = likely Tanker Handling Tank / Thickener Tank

• EoWL = End of Waste Water Line / Final Effluent

• TSR = Technical Safety Report / Site Record

• SF/UV = Sand Filter / Ultraviolet building

• P/S = Phosphorus/Sulphur or Pressure System

• TN = Total Nitrogen

• mag abs = magnesium absorption