UKTC Archive

RE: Biodisc effluent - impact to trees?

Subject: RE: Biodisc effluent - impact to trees?
From: "Phillip Ellis"
Date: Dec 21 2017 10:44:51
Many years ago we used sewage sludge at Aldershot entirely as topsoil to 
landscaping of new army married quarters. 
It was suggested the sludge dated back to the Boer war late 1800's, not even 
I go back that far!
Everything grew and as far as I know still survives.


Phillip Ellis


-----Original Message-----
From: uktc-request@xxxxxx.tree-care.info 
[mailto:uktc-request@xxxxxx.tree-care.info] On Behalf Of Edmund Hopkins
Sent: Thursday, December 21, 2017 10:30 AM
To: UK Tree Care <uktc@xxxxxx.tree-care.info>
Subject: RE: Biodisc effluent - impact to trees?

Sewage sludge, which may or may not be the same thing, was widely used in 
forestry so there should be some data hopefully on line at Forest Research. I 
have used it as pit fill when employed as a young man and remember 2 things, 
the smell which was like plastercine, and the heat, which was welcome in the 
bitterly cold.

Edmund Hopkins
Tree Officer
Heritage and Urban Design
City Planning
0115 XXXXXXX


-----Original Message-----
From: uktc-request@xxxxxx.tree-care.info 
[mailto:uktc-request@xxxxxx.tree-care.info] On Behalf Of Igoea, Andrew
Sent: 21 December 2017 10:20
To: UK Tree Care <uktc@xxxxxx.tree-care.info>
Subject: Biodisc effluent - impact to trees?

Hi All,

Has anyone had experience with assessing the impact of discharging biodisc 
effluent (treated sewage) into the rooting zone of trees?

The treated effluent will contain 10mg/L suspended solids and 3.8mg/L 
ammonia, and will have a BOD of 10mg/L. The output could be between 1-2 cubic 
metres per day.

The treatment facility is at the top of a steep bank and the trees are below 
it.

I know the proposal will impact the moisture content and chemical composition 
of the soil, which could impact the mycorrhizal associations and soil fauna, 
but will it have a significant detrimental impact on the trees?

Regards,

Andrew Igoea  | Arboricultural Officer
Forestry, Amenity and Lands Directorate | Department of Environment, Food and 
Agriculture Thie Slieau Whallian | Foxdale Road | St Johns | Isle of Man | 
IM4 3AS
TEL:  (+44) 01624 XXXXXX | MOB: (+44) 07624 XXXXXX | E-MAIL: 
andrew.igoea@xxxx.im<mailto:andrew.igoea@xxxx.im>



Isle of Man. Giving you freedom to flourish


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