The document summarizes a meeting agenda on research into using digestates - the solid residues from anaerobic digestion - in horticultural growing media. It includes an introduction to current research projects using digestates in novel growing media for ornamental plants at Moulton College and Cambridge Eco. Initial results are presented from a glasshouse trial comparing the growth of black pine, cyclamen and ferns in different bark-based growing media amended with various volumes of different digestates. Potential applications for the horticultural industry are discussed, including using digestates as a liquid fertilizer or component of new peat-alternative growing media. Cost analyses show digestate-amended media can have similar or lower costs than peat-
Short-rotation Willow Biomass Plantations Irrigated and Fertilised with Waste...Arne Backlund
Results from a 4-year multidisciplinary field project in
Sweden, France, Northern Ireland and Greece
supported by the EU-FAIR Programme
(FAIR5-CT97-3947)
FINAL REPORT
January 2003
Presented by IWMIs Sudarshana Fernando and Nilanthi Jayathilake at a stakeholder workshop on 'Opportunities for sustainable municipal solid waste management services in Batticaloa District, in Sri Lanka, on September 23, 2016.
Short-rotation Willow Biomass Plantations Irrigated and Fertilised with Waste...Arne Backlund
Results from a 4-year multidisciplinary field project in
Sweden, France, Northern Ireland and Greece
supported by the EU-FAIR Programme
(FAIR5-CT97-3947)
FINAL REPORT
January 2003
Presented by IWMIs Sudarshana Fernando and Nilanthi Jayathilake at a stakeholder workshop on 'Opportunities for sustainable municipal solid waste management services in Batticaloa District, in Sri Lanka, on September 23, 2016.
Analysis of Organic Fertilizers for Nutrients with AAnalyst 800 Atomic Absorp...PerkinElmer, Inc.
"The present work demonstrates the ability of the PerkinElmer®
AAnalyst™ 800 atomic absorption spectrophotometer to
analyze the micronutrients in several organic fertilizers.
The results obtained from using the conventional AOAC
Method 965.09 using dry ashing with a muffle furnace and
EPA Method 3052, the official EPA method for the microwave
digestion of siliceous and organic based samples, are compared."
Learn more about our solutions: http://bit.ly/1bENIDL
Kuching | Jan-15 | Pelletisation of musa acuminata balbisiana and musa patadi...Smart Villages
Given by Nazeri Abdul Rahman
The second in our series of workshops designed to gather input from stakeholders involved in existing off-grid projects in Africa, Asia and Latin America. This event is workshop scheduled to be held in Malaysia for the ASEAN countries will be organised by the Academy of Sciences Malaysia (ASM) in collaboration with Universiti Malaysia Sarawak (UNIMAS).
Case Study on Removal of Ambazari lake Water impurities By using Corn Cob and...IJERA Editor
This study was carried out for the utilization of Corn Cobs and Neem leaves as adsorbent for the removal of Surface water impurities . From the above observation it was concluded that Corn cobs were found suitable adsorbents because of their high mechanical strength, rigidity and porosity. Hence, contaminants like oxides of salts, detergents, suspended particles, coloured dyes, oil and grease get adsorbed in the surface of the corn cobs. It is a cheap and low cost method using one the less utilized agricultural bio-wastes of the globe.
Learn about the long-term Ontario research on cover crop impacts on yields and economics and about cover crop selection and termination. Anne Verhallen, Mike Cowbrough, OMAFRA
Agricultural Waste Materials as Potential Adsorbent for Treating Industrial W...YogeshIJTSRD
Nowadays, the people suffer a lot due to water pollution and it becomes a serious problem. Therefore, it is very important to minimize the water pollution and utilize the treated waste water for domestic purpose. The principle objective of waste water treatment is to use the water for the domestic purpose without causing any damage to the human health and environment. The waste water from dyeing industries is treated by using agricultural waste such as Saccharum Officinarum leaves, Curcuma Longa leaves, CocosNucifera shell, Rice husk and Saw dust and compares the physical properties of this treated water with the distilled water and drinking water. The agro waste added as 10g, 20g and 30g to the 1000 ml wastewater and leaves it for a period of 1day, 3days, 5days, 7days and 9days and then tested. As a result, addition of 20g of CocosNucifera shell powder in 1000 ml waste water reduces pH and concentrations greatly than other agricultural waste used. Then the color of wastewater can be removed by using coconut shell ash within a period of 2 to 3 days. This study is conducted for the purpose of knowing how efficiently the wastewater could be treated and utilized for domestic purpose using low cost adsorbent such as agricultural waste. S. Shanmathi | Dr. M. Gunasekaran | A. K. Arunagiri Murugan | Dr. S. Christian Johnson "Agricultural Waste Materials as Potential Adsorbent for Treating Industrial Waste Water" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-5 | Issue-3 , April 2021, URL: https://www.ijtsrd.com/papers/ijtsrd39995.pdf Paper URL: https://www.ijtsrd.com/engineering/civil-engineering/39995/agricultural-waste-materials-as-potential-adsorbent-for-treating-industrial-waste-water/s-shanmathi
Treatment of Sewage by Phytoremediation method using Izndian mustard Plantijtsrd
Increasing urbanization, industrialization and over population is one of the leading causes of environmental degradation and pollution. Aquatic bodies are the traditional recipients of sewage containing heavy contaminants, which are released in higher concentrations and cause deleterious effects on organisms. Phytoremediation, an ecofriendly technology which is both ecologically sound and economically viable is an attractive alternative to the current cleanup methods that are very expensive. Phytoremediation technology is a cost effective one as it utilizes plants natural ability to suck the pollutant present in the water. There are many plants having this natural ability to up take the heavy metals and organic pollutants from air, soil and water. In this project we have treated the sewage coming out after primary treatment using phytoremediation techniques. In this project, the sewage which is taken from the primary treatment unit is further treated using phytoremediation technique that is the mustard plant is used for treating the sewage and thereby reducing the contaminants in wastewater to meet the wastewater disposal standards. Among various phytoremediation techniques phytovolatilization found to be effective in removing the pollutant as BOD, COD, Turbidity, Total dissolved solids, Kjeldahl nitrogen. The phytovolatilization showed the best removal of BOD up to 59.44 , COD up to 60.02 , Turbidity up to 97.83 , Total dissolved solids up to 31.35 , Kjeldahl nitrogen 97.46 . Karthika. V "Treatment of Sewage by Phytoremediation method using Izndian mustard Plant" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-4 | Issue-5 , August 2020, URL: https://www.ijtsrd.com/papers/ijtsrd31644.pdf Paper Url :https://www.ijtsrd.com/engineering/environmental-engineering/31644/treatment-of-sewage-by-phytoremediation-method-using-izndian-mustard-plant/karthika-v
Low-emission food systems - moving from policies to practice in VietnamCIFOR-ICRAF
Presented by Mai Van Trinh (Director General of Institute for Agriculture Environment (IAE), Ministry of Agriculture and Rural Development) at "Low-emission food system development in the Mekong Delta: Opportunities, challenges and future pathways", 7 November 2023, Ho Chi Minh City, Viet Nam
AGRISAN: INTEGRATING URBAN AGRICULTURE AND NEW SANITATIONCarter Craft
This presentation was delivered by Rosane Wielemaker at the Blue Tech Roundtable convened by the Consulate General of the Netherlands in New York on 10 August 2017. Ms. Cunha is a PhD candidate in the Sub-department of Environmental Technology, Wageningen University, The Netherlands. This presentation focuses on biorecovery, reusable water, and urban systems engineering
High-density production of the Pacific White Shrimp, Litopenaeus vannamei, in...ssuserc18183
High-density production of the Pacific White Shrimp, Litopenaeus vannamei, in recycled culture water under zero-exchange conditions using settling tanks, foam fractionators and dissolved oxygen monitoring systems as management tools
To achieve sustainable agricultural production it is imperative to explore alternative integrated soil and nutrient management systems with minimum environmental degradation. Integrated Nutrient Management (INM) aims at maintenance or adjustment of soil fertility and plant nutrient supply to an optimum level for sustaining the desired crop productivity through optimization of benefit from all possible sources of plant nutrients in an integrated manner (Roy and Ange, 1991). Continuous and imbalanced use of fertilizers under intensive agricultural cultivation had adverse impact on the soil. Use of bio and organic fertilizers and adherence to ecofriendly land management practice enhances crop production and sustains soil fertility (Sailaja and Usha, 2002). Keeping these in view, INM practice is seen as a viable option in restoring the soil physical structure and chemical fertility, improving soil organic C and therefore, sustaining the system productivity. Sources such as nitrogen fixers, phosphate solubilizers, mycorrhize and other beneficial organisms contribute to enhance efficient uptake of plant nutrients (Gupta et al., 2003).
INM tries to reduce the need for chemical fertilizers by taking advantages of non-chemical sources of nutrients such as the manures, composts and bio-fertilizers (Gopalasundaram et al., 2012). Bio-fertilizers application not only increases plants growth and yield, but increase soil microbial population and activity; resulting in improved soil fertility (Ramesh et al., 2014). They include free-living bacteria which promote plant growth even in polluted soils. Azospirillum, Azotobacter, Pseudomonas, Bacillus and Thiobacillus are examples of these bacteria (Zahir et al., 2004). Niess (2002) reported that plant growth promoting bacteria reduced the toxicity of heavy metals and increased plant growth and yield.
Apart from this, agroforestry interventions through integration of suitable trees, soil improvement through cover cropping, soil and water conservation measures etc can be potential INM strategies that can be practiced to sustain yield, minimize risk, utilize the lag phase, and improve productivity (Rao, 2000). The success of INM depends on the judicious use of the right combination of INM component suitable for a particular land use system.
Analysis of Organic Fertilizers for Nutrients with AAnalyst 800 Atomic Absorp...PerkinElmer, Inc.
"The present work demonstrates the ability of the PerkinElmer®
AAnalyst™ 800 atomic absorption spectrophotometer to
analyze the micronutrients in several organic fertilizers.
The results obtained from using the conventional AOAC
Method 965.09 using dry ashing with a muffle furnace and
EPA Method 3052, the official EPA method for the microwave
digestion of siliceous and organic based samples, are compared."
Learn more about our solutions: http://bit.ly/1bENIDL
Kuching | Jan-15 | Pelletisation of musa acuminata balbisiana and musa patadi...Smart Villages
Given by Nazeri Abdul Rahman
The second in our series of workshops designed to gather input from stakeholders involved in existing off-grid projects in Africa, Asia and Latin America. This event is workshop scheduled to be held in Malaysia for the ASEAN countries will be organised by the Academy of Sciences Malaysia (ASM) in collaboration with Universiti Malaysia Sarawak (UNIMAS).
Case Study on Removal of Ambazari lake Water impurities By using Corn Cob and...IJERA Editor
This study was carried out for the utilization of Corn Cobs and Neem leaves as adsorbent for the removal of Surface water impurities . From the above observation it was concluded that Corn cobs were found suitable adsorbents because of their high mechanical strength, rigidity and porosity. Hence, contaminants like oxides of salts, detergents, suspended particles, coloured dyes, oil and grease get adsorbed in the surface of the corn cobs. It is a cheap and low cost method using one the less utilized agricultural bio-wastes of the globe.
Learn about the long-term Ontario research on cover crop impacts on yields and economics and about cover crop selection and termination. Anne Verhallen, Mike Cowbrough, OMAFRA
Agricultural Waste Materials as Potential Adsorbent for Treating Industrial W...YogeshIJTSRD
Nowadays, the people suffer a lot due to water pollution and it becomes a serious problem. Therefore, it is very important to minimize the water pollution and utilize the treated waste water for domestic purpose. The principle objective of waste water treatment is to use the water for the domestic purpose without causing any damage to the human health and environment. The waste water from dyeing industries is treated by using agricultural waste such as Saccharum Officinarum leaves, Curcuma Longa leaves, CocosNucifera shell, Rice husk and Saw dust and compares the physical properties of this treated water with the distilled water and drinking water. The agro waste added as 10g, 20g and 30g to the 1000 ml wastewater and leaves it for a period of 1day, 3days, 5days, 7days and 9days and then tested. As a result, addition of 20g of CocosNucifera shell powder in 1000 ml waste water reduces pH and concentrations greatly than other agricultural waste used. Then the color of wastewater can be removed by using coconut shell ash within a period of 2 to 3 days. This study is conducted for the purpose of knowing how efficiently the wastewater could be treated and utilized for domestic purpose using low cost adsorbent such as agricultural waste. S. Shanmathi | Dr. M. Gunasekaran | A. K. Arunagiri Murugan | Dr. S. Christian Johnson "Agricultural Waste Materials as Potential Adsorbent for Treating Industrial Waste Water" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-5 | Issue-3 , April 2021, URL: https://www.ijtsrd.com/papers/ijtsrd39995.pdf Paper URL: https://www.ijtsrd.com/engineering/civil-engineering/39995/agricultural-waste-materials-as-potential-adsorbent-for-treating-industrial-waste-water/s-shanmathi
Treatment of Sewage by Phytoremediation method using Izndian mustard Plantijtsrd
Increasing urbanization, industrialization and over population is one of the leading causes of environmental degradation and pollution. Aquatic bodies are the traditional recipients of sewage containing heavy contaminants, which are released in higher concentrations and cause deleterious effects on organisms. Phytoremediation, an ecofriendly technology which is both ecologically sound and economically viable is an attractive alternative to the current cleanup methods that are very expensive. Phytoremediation technology is a cost effective one as it utilizes plants natural ability to suck the pollutant present in the water. There are many plants having this natural ability to up take the heavy metals and organic pollutants from air, soil and water. In this project we have treated the sewage coming out after primary treatment using phytoremediation techniques. In this project, the sewage which is taken from the primary treatment unit is further treated using phytoremediation technique that is the mustard plant is used for treating the sewage and thereby reducing the contaminants in wastewater to meet the wastewater disposal standards. Among various phytoremediation techniques phytovolatilization found to be effective in removing the pollutant as BOD, COD, Turbidity, Total dissolved solids, Kjeldahl nitrogen. The phytovolatilization showed the best removal of BOD up to 59.44 , COD up to 60.02 , Turbidity up to 97.83 , Total dissolved solids up to 31.35 , Kjeldahl nitrogen 97.46 . Karthika. V "Treatment of Sewage by Phytoremediation method using Izndian mustard Plant" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-4 | Issue-5 , August 2020, URL: https://www.ijtsrd.com/papers/ijtsrd31644.pdf Paper Url :https://www.ijtsrd.com/engineering/environmental-engineering/31644/treatment-of-sewage-by-phytoremediation-method-using-izndian-mustard-plant/karthika-v
Low-emission food systems - moving from policies to practice in VietnamCIFOR-ICRAF
Presented by Mai Van Trinh (Director General of Institute for Agriculture Environment (IAE), Ministry of Agriculture and Rural Development) at "Low-emission food system development in the Mekong Delta: Opportunities, challenges and future pathways", 7 November 2023, Ho Chi Minh City, Viet Nam
AGRISAN: INTEGRATING URBAN AGRICULTURE AND NEW SANITATIONCarter Craft
This presentation was delivered by Rosane Wielemaker at the Blue Tech Roundtable convened by the Consulate General of the Netherlands in New York on 10 August 2017. Ms. Cunha is a PhD candidate in the Sub-department of Environmental Technology, Wageningen University, The Netherlands. This presentation focuses on biorecovery, reusable water, and urban systems engineering
High-density production of the Pacific White Shrimp, Litopenaeus vannamei, in...ssuserc18183
High-density production of the Pacific White Shrimp, Litopenaeus vannamei, in recycled culture water under zero-exchange conditions using settling tanks, foam fractionators and dissolved oxygen monitoring systems as management tools
To achieve sustainable agricultural production it is imperative to explore alternative integrated soil and nutrient management systems with minimum environmental degradation. Integrated Nutrient Management (INM) aims at maintenance or adjustment of soil fertility and plant nutrient supply to an optimum level for sustaining the desired crop productivity through optimization of benefit from all possible sources of plant nutrients in an integrated manner (Roy and Ange, 1991). Continuous and imbalanced use of fertilizers under intensive agricultural cultivation had adverse impact on the soil. Use of bio and organic fertilizers and adherence to ecofriendly land management practice enhances crop production and sustains soil fertility (Sailaja and Usha, 2002). Keeping these in view, INM practice is seen as a viable option in restoring the soil physical structure and chemical fertility, improving soil organic C and therefore, sustaining the system productivity. Sources such as nitrogen fixers, phosphate solubilizers, mycorrhize and other beneficial organisms contribute to enhance efficient uptake of plant nutrients (Gupta et al., 2003).
INM tries to reduce the need for chemical fertilizers by taking advantages of non-chemical sources of nutrients such as the manures, composts and bio-fertilizers (Gopalasundaram et al., 2012). Bio-fertilizers application not only increases plants growth and yield, but increase soil microbial population and activity; resulting in improved soil fertility (Ramesh et al., 2014). They include free-living bacteria which promote plant growth even in polluted soils. Azospirillum, Azotobacter, Pseudomonas, Bacillus and Thiobacillus are examples of these bacteria (Zahir et al., 2004). Niess (2002) reported that plant growth promoting bacteria reduced the toxicity of heavy metals and increased plant growth and yield.
Apart from this, agroforestry interventions through integration of suitable trees, soil improvement through cover cropping, soil and water conservation measures etc can be potential INM strategies that can be practiced to sustain yield, minimize risk, utilize the lag phase, and improve productivity (Rao, 2000). The success of INM depends on the judicious use of the right combination of INM component suitable for a particular land use system.
Similar to CEL and Moulton Presentation 15 May 2013 (20)
1. Dr Mary Dimambro – Cambridge Eco
Dr Russ Sharp and Sam Brown – Moulton
2. Agenda
10:00 Welcome. Dr Russ Sharp, Moulton College
10:05
Introduction to anaerobic digestion and current research on the use of
digestates in horticulture. Jacks Guinness, WRAP
10:25
Introduction to the project on the use of digestates in novel growing
media for ornamentals. Dr Mary Dimambro, Cambridge Eco
10:35
Trial system design, growing media and results to date for black pine,
cyclamen and fern. Sam Brown – Moulton College
10:45 Potential application to industry. Dr Russ Sharp, Moulton College
11:00 Discussion
11:20 Viewing the glasshouse trials
11:45 Discussion, tea and coffee, networking
12:00 Close
3. About Moulton College
Moulton is the only land-based college to
teach from ‘special needs’ through to
‘doctoral studies’.
Graded by OFSTED as Outstanding!
Campuses/academies in Moulton, Higham
Ferrers, Silverstone, Daventry and
Peterborough
4. About Moulton College
Horticultural research currently funded on a
diverse range of subjects:
LED lighting
Growing media
Soil compaction (PhD)
Soil-borne diseases (PhD)
Plant propagation (PhD)
Urban cooling (PhD)
Alternative crops
Garden History
5. About Cambridge Eco
Advising Defra, WRAP, industry, growers
Experts in the use of
composts
digestates
6. Use of digestates as a liquid fertiliser for
commercial strawberry production
6 digestates
Grow bags with trickle irrigation
Digestate Control Digestate Control
8. Why bark and digestate?
Bark = Low bulk density, nitrogen content, and pH
+ an absorbent matrix
Digestate = High bulk density, nitrogen content, and pH
+ liquid digestate able to be absorbed onto matrix
Ornamentals chosen = non-food crop with high
tolerance to salinity and ammonium.
9. Use of digestates in novel
growing media for ornamentals
Project phases:
October-December: Desk study
January-February: Designing the admixtures
March-May: Glasshouse trial
June-August: Report
11. Design Considerations -
Admixtures
Key parameters:
Particle size, air filled porosity and drainage
Electrical conductivity important
Ferns and cyclamen: up to 200µS/cm with low levels of
nutrients
Pines: 600µS/cm (pollution and salt tolerant) with base
fertiliser and long term controlled release fertiliser
14. Can digestates replace
additives?
Dolodust (magnesium limestone): Raise the pH level &
adds traces of magnesium
Digestates pH balances the low pH of the bark, and
contain sufficient magnesium
Nitrochalk (ammonium nitrate & calcium carbonate)
Digestates have adequate or high levels of ammonia
and calcium
Fertilisers (base and controlled release)
Digestates contain sufficient nutrients
15. Trial design
Controls (industry standards)
Peat-based control (PC)
Peat-free control (bark and wood fibre based, BC)
4 digestates – each with 5 admixtures
5 replicates = 110 plants per trial
16. Trial design
Randomised plot design. Rearranged at fortnightly
intervals to minimise edge effects
Both labels and pot markings used to identify plants
in each treatment.
Extra plants bought in to allow grading of plants
before allocating treatments.
17. Trial Design
Plants irrigated to just below drip point to ensure that
digestate did not leak out and move between treated
plants.
Saucers not used to ensure no stagnant water was
present around the roots.
Plants monitored for signs of pests and diseases.
None currently found so far.
Electric heaters in use in early part of the trial and
then vents opened to ensure a cool growing
environment typical of an HONS nursery.
18. Subject species
Why Black pines? HONS plant highly tolerant to both
salt and heavy metal pollution.
Why Ferns? A HONS plant that thrives in organic
growing media rich in ammonium.
Why Cyclamen? A HONS plant that thrives in
organic growing media for which we can obtain
flowering data.
19. Making the admixtures
The main selection criteria were EC, structure and
consistency (not too wet or too dry)
Standard ingredients trialled
The final admixtures:
60% bark, 30% wood fibre, 10% top soil + digestate
23. Monitoring
Fortnightly assessment
Pines: Plant height and number of branches.
Ferns: Number of fully extended fronds and length of
longest frond
Cyclamen: Number of leaves and flowers
Monthly assessment
Foliage quality:
SPAD chlorophyll meter (ferns and cyclamen)
Visual assessment (all)
24. Results to date
Trials will finish over the next few weeks
All data collected so far show no significant
difference in the response of all three species to the
different growing media for all parameters tested.
Analysed via ANOVA and Kruskal Wallace tests.
Full results in final report, including changes over
time and final harvest measurements.
33. Digestate Requirement
1m3 digestate enough for
~ 5 m3 - 50 m3 growing medium
One lorry load digestate
~ 25 t digestate
~ 5 – 50 lorry loads of growing media
34. Digestate Storage
Volume Type Cost
/m3/year
over 10
years
1 m3 White 1000 Litre IBC container £ 7
1 m3 New IBC, timber pallet £ 10
10 m3 CT2200JA Tank £ 12
19 m3 V19000 £ 13
36 m3 Elliptical Concrete Tank £ 15
72 m3 Small AD storage unit £ 24
4500 m3 Steel / concrete above ground £ 3.5
4500 m3 Earth bank lagoon £ 2
35. Transport
Transport cost depends on
Distance
Volume
Frequency of deliveries
Typical digestate transport costs per 26t lorry:
£4 /m3 if using infrastructure of digestate producer
£6 /m3 if 4 lorry loads per day are delivered
£23 /m3 if 1 lorry load per day is delivered
36. Ingredients
Cost of peat has increased
Due to adverse weather conditions during harvest
World shortage of peat in 2013
Lacking peat content is replaced with bark and
woodchip and other materials
Now less than 80% peat in some peat based growing
media
Cost of growing media ingredients is volatile
Currently the cost of some peat free growing media is
artificially lowered to encourage uptake
Cost of raw ingredients is only a snapshot / estimate
37. Growing Media Cost
Peat Free
Nursery
Stock
Peat Based
Nursery
Stock
Digestate / Bark
Admixtures
£60 - £78 /m3 £60 - £177 /m3 Bark fine 60% £ 38.50
Wood fibre 30% £ 18.50
Top soil 10% £ 9.30
Digestate storage £ 1
Digestate
transport
£ 4
Total £71 - £78 /m3 £71 - £177 /m3 £ 71.30 /m3
*Delivery costs included
38. Potential application to industry
New growing media
Potential for use as liquid fertiliser (diluted)
Potential for closer links with plants for disposal of waste
material, especially infected material that should not be
composted.
Unlike other peat-alternatives, peat and digestates are
produced on in massive volumes, thus able to satisfy a
large proportion of current demand.
Challenges: the grade of bark to use and optimising
nutritional content of media for different species.