Nick Gray
@nfgray.bsky.social
Environmental scientist and wastewater engineer based at Trinity College Dublin, working as advisor and writer on all things to do with the environment. Author of 17 books and numerous research papers, author of 'Facing upto Global Warming'.
Delighted that my latest book 'Anaerobic Wastewater Treatment' has been published by World Scientific. It explores the exciting new range of anaerobic processes that are transforming WWTPs into resource recovery centres. doi.org/10.1142/q0507
#wastewater #anaerobic #biogas #circulareconomy
#wastewater #anaerobic #biogas #circulareconomy
November 26, 2025 at 11:45 AM
Delighted that my latest book 'Anaerobic Wastewater Treatment' has been published by World Scientific. It explores the exciting new range of anaerobic processes that are transforming WWTPs into resource recovery centres. doi.org/10.1142/q0507
#wastewater #anaerobic #biogas #circulareconomy
#wastewater #anaerobic #biogas #circulareconomy
I have really enjoyed reading this super new collection of poems from Victoria Melkovska. I really recommend it. I found it heartwarming and personal. A great new talent in Irish poetry. www.dedaluspress.com/authors/melk...
October 8, 2025 at 2:46 PM
I have really enjoyed reading this super new collection of poems from Victoria Melkovska. I really recommend it. I found it heartwarming and personal. A great new talent in Irish poetry. www.dedaluspress.com/authors/melk...
Happy Birthday John
September 10, 2025 at 12:51 PM
Happy Birthday John
#GreenRoofs are increasingly common in urban areas but given the current combination of heat and water shortages are they always safe? They also require significant structural support. Good for biodiversity not as good as painting a roof white for #emissions and cooling buildings at night
July 23, 2025 at 7:45 AM
#GreenRoofs are increasingly common in urban areas but given the current combination of heat and water shortages are they always safe? They also require significant structural support. Good for biodiversity not as good as painting a roof white for #emissions and cooling buildings at night
A first for me. We have #swallows in all our outbuildings which is a bit of a problem as they are so messy...hence the cars are covered as they nest above them. This one has been perched on the car aerial for the past month and spends hours watching other swallows in action #birds #conservation
July 22, 2025 at 9:21 AM
A first for me. We have #swallows in all our outbuildings which is a bit of a problem as they are so messy...hence the cars are covered as they nest above them. This one has been perched on the car aerial for the past month and spends hours watching other swallows in action #birds #conservation
Forgot that I had left this old Easter Cactus in the Polytunnel until it decided to remind me!
July 17, 2025 at 1:18 PM
Forgot that I had left this old Easter Cactus in the Polytunnel until it decided to remind me!
Each year I have to cut down the hogweed at the bottom of my percolation area where I have a small willow stand. It's a lovely plant but so invasive producing massive seed heads. Creating a range of habitats requires a lot of management #gardening #conservation #nature
July 17, 2025 at 10:23 AM
Each year I have to cut down the hogweed at the bottom of my percolation area where I have a small willow stand. It's a lovely plant but so invasive producing massive seed heads. Creating a range of habitats requires a lot of management #gardening #conservation #nature
Lovely Holly Blue #butterfly just outside my office.
July 16, 2025 at 3:20 PM
Lovely Holly Blue #butterfly just outside my office.
Latest in the new series. Embracing the circular economy concept, #wastewater treatment plants are changing from being solely about pollution control to resource recovery centres, and to achieve this, #anaerobic treatment is key. A new era is beginning with huge benefits doi.org/10.1142/q0507
June 12, 2025 at 10:49 AM
Latest in the new series. Embracing the circular economy concept, #wastewater treatment plants are changing from being solely about pollution control to resource recovery centres, and to achieve this, #anaerobic treatment is key. A new era is beginning with huge benefits doi.org/10.1142/q0507
This farmer has been pouring sludge onto this field for five weeks, it is now over 100mm thick in places...the smell!!! Today he is removing the hedge between the two fields. Some farmers may be guardians of the countryside many are not. #farming #conservation #wicklow @wicklowcoco.bsky.social
April 12, 2025 at 10:52 AM
This farmer has been pouring sludge onto this field for five weeks, it is now over 100mm thick in places...the smell!!! Today he is removing the hedge between the two fields. Some farmers may be guardians of the countryside many are not. #farming #conservation #wicklow @wicklowcoco.bsky.social
Happy book day. Just been to the library to celebrate all things books. #books #nationalbookday
March 6, 2025 at 2:39 PM
Happy book day. Just been to the library to celebrate all things books. #books #nationalbookday
That's not what my gate looked like earlier?
February 1, 2025 at 6:23 PM
That's not what my gate looked like earlier?
I keep coming back to this second collection of poems by #RachelCoventry which are so personal and strong. We are blessed in Ireland with such great emerging female poets that have a unique voice. Really enjoyable, #poetry #books
January 31, 2025 at 10:29 AM
I keep coming back to this second collection of poems by #RachelCoventry which are so personal and strong. We are blessed in Ireland with such great emerging female poets that have a unique voice. Really enjoyable, #poetry #books
John Rebus never really ages. Is this the last in the series? Great read. #ianrankin #books
January 30, 2025 at 9:34 AM
John Rebus never really ages. Is this the last in the series? Great read. #ianrankin #books
Just finished this Inspector Wexford novel. Bit dated and was confused by the rather hit and miss technique of this rather conflicting detective. #books
January 20, 2025 at 11:56 AM
Just finished this Inspector Wexford novel. Bit dated and was confused by the rather hit and miss technique of this rather conflicting detective. #books
Just finished the first in the Wallander series of thrillers. I am rereading these again but I am being to dislike the main character Inspector Wallander...he is certainly a strange mixture of contradictions. A good read although not as rounded as the later ones. #books
January 19, 2025 at 6:14 PM
Just finished the first in the Wallander series of thrillers. I am rereading these again but I am being to dislike the main character Inspector Wallander...he is certainly a strange mixture of contradictions. A good read although not as rounded as the later ones. #books
I don't know when the flight path was changed, but it is strange to be now woken up at night by the noise of aircraft when you live in rural Ireland. I seem to be at a point where they cross going east-west and north-south. There is always at least one in the sky... contrail at dawn
#photography
#photography
January 13, 2025 at 11:03 AM
I don't know when the flight path was changed, but it is strange to be now woken up at night by the noise of aircraft when you live in rural Ireland. I seem to be at a point where they cross going east-west and north-south. There is always at least one in the sky... contrail at dawn
#photography
#photography
Just managed to finish Henning Mankell's early Wallander novel before the work week started. Written at the beginning of the 1990's it is fascinating to see how Latvia has changed since then but that how Russia has gone full circle since the break up of the USSR. #Books
January 13, 2025 at 10:43 AM
Just managed to finish Henning Mankell's early Wallander novel before the work week started. Written at the beginning of the 1990's it is fascinating to see how Latvia has changed since then but that how Russia has gone full circle since the break up of the USSR. #Books
A view from my window at dusk a few weeks ago of a contrail. #photography
January 11, 2025 at 5:38 PM
A view from my window at dusk a few weeks ago of a contrail. #photography
Not quite so cold this morning, but this image of a couple of summers ago reminded me that l love all the seasons equally, including the cold ones. Have a great day, be positive about #climateaction and do something every day to reduce your footprint.
January 10, 2025 at 9:30 AM
Not quite so cold this morning, but this image of a couple of summers ago reminded me that l love all the seasons equally, including the cold ones. Have a great day, be positive about #climateaction and do something every day to reduce your footprint.
Back at work yesterday and busy working on #wastewater #surveillance updates. Managed to finish Jane Thynne's 'Midnight in Vienna' which was a good read. I'll be back to reading poetry for the rest of the week as I am able to sneak a few verses between writing and research.
January 7, 2025 at 2:45 PM
Back at work yesterday and busy working on #wastewater #surveillance updates. Managed to finish Jane Thynne's 'Midnight in Vienna' which was a good read. I'll be back to reading poetry for the rest of the week as I am able to sneak a few verses between writing and research.
The wonderful thing about holidays is you can indulge in lots of reading. Just reread Audrey Molloy’s collection. She is an exciting Irish poet although has lived for the best part of 20 years in Australia. This new generation of poets brings a vital intimacy to #poetry which I love.
#books
#books
December 31, 2024 at 9:45 AM