UKTC Archive

RE: Biodisc effluent - impact to trees?

Subject: RE: Biodisc effluent - impact to trees?
From: "Phillip Ellis"
Date: Dec 21 2017 12:18:11
Must be the lanolin that gives it the smell.

From Wikipedia:
Plasticine is approximately 65% bulking agent, (principally gypsum), 10% 
petroleum jelly, 5% lime and 10% lanolin and stearic acid. It cannot be 
hardened by firing, melts when exposed to heat, and is flammable at higher 
temperature.



-----Original Message-----
From: uktc-request@xxxxxx.tree-care.info 
[mailto:uktc-request@xxxxxx.tree-care.info] On Behalf Of Bill Anderson
Sent: Thursday, December 21, 2017 12:09 PM
To: UK Tree Care <uktc@xxxxxx.tree-care.info>
Subject: Re: Biodisc effluent - impact to trees?

I'd have thought that the liquid would be a problem even if it was just 
water; wouldn't that lead to anaerobic conditions and root death?

Smells like plasticine? As a child I was convinced plasticine was made out of 
sewage waste, largely on account of the odour when we went past the treatment 
plant in the Lower Don Valley!

Bill.

On 21 December 2017 at 11:51, Jerry Ross <trees@xxxxxxxxxx.co.uk> wrote:

It strikes me that making an application of sewage sludge is one 
thing; providing a supply of 1-2 cubic metres of nutrient rich liquid 
every day is another. I'd be surprised if it didn't adversely affect 
established trees down-slope. If nothing else, it would surely affect 
the mycorrhizae, would it not?



On 21/12/2017 10:44, "Phillip Ellis" (elsteadbysea@xxxxxxxxxxx.com) wrote:

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.tre e-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.tre e-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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The UKTC is supported by Bosky Trees arboricultural consultancy
http://www.boskytrees.co.uk/