The document discusses verification of several technologies for improving biogas production and wastewater treatment: 1) Pretreatment technologies from GFE and Xergi that increase biogas production from manure fibers through alkaline pressure boiling were verified by the Danish Technological Institute. 2) A slurry separator from SB Engineering that divides livestock manure into solid and liquid fractions was verified for biogas yield, separation efficiency, and electricity use. 3) Luminescence technology from HACH-LANGE for faster toxicity measurements in wastewater was verified jointly with US and Canadian environmental technology verification programs. 4) A biomass drying technology from Cimbria Manufacturing using overheated steam was verified by

1. More Biogas BoosTing Biogas BY ToXiCiTY MeasUre
froM WasTe BioMass iMproved sUBsTraTes of WasTeWaTer
Pre-treatment from GFE and Xergi The new slurry separator from SB Engineering increases Luminescence technology from HACH-LANGE for faster
the efficiency of biogas plants and reduces slurry transports laboratory and on site toxicity measurements
The pre-treatment system increases biogas production from manure fibres AgroTech has tested the separator from SB Engineering to verify the per- HACH-LANGE luminometers for toxicity test in wastewater samples,
and makes it possible to utilize a wider range of biomasses including ani- formance. Verification was done in full scale on a commercial farm using LUMIStox, for laboratory tests and the recently developed field/lab-
mal byproducts. The alkaline pressure boiling results in higher methane cattle slurry as input manure. The main objective of the test was to verify oratory instrument, ECLOX, have been verified at the DHI DANETV
production and removal of ammonia before introduction to the digest the separation efficiency with respect to total solids, total nitrogen and Water Centre.
reactor. The verification included testing of several different biomasses in phosphorous and at the same time determine the biogas yield of the solid
laboratory at the Danish Technological Institute. fraction. In addition the electricity consumption has been measured as The verification was done as a joint verification with the US EPA ETV,
part of the verification. hosted by Battelle, and ETV Canada, hosted by OCETA. The verifica-
tion results will be a strong marketing tool for HACH-LANGE.
Getting the best out of waste Benefits both climate Faster screening
Verification of manure fiber using boiling and ammonia The verification of the SB and environment for toxicity Verification of the LUMIStox
pretreatment effect upon extraction from fibres Engineering separator was done and ECLOX luminometers:
The separator divides liquid LUMIStox and ECLOX per-
biogas potential: for an application as follows:
The pre-treatment of biomass livestock manure into a solid form luminescence tests O Effluent domestic and
O Manure fibres as substrate is a combination of pressure O Separation of cattle slurry fraction and a liquid fraction. with the light emitting industrial waste water.
boiling and pH regulation us- The solid fraction is rich in bacterium Vibrio fischeri. If
O Increase in biogas production O Biogas yield of solid fraction O Monitoring of inhibition
ing of calcium oxide addition. organic matter and thus a bacterial metabolism is in-
O Faster fermentation process This relatively simple procedure O Separation efficiency with useful substrate for biogas hibited by a toxic compound of luminescent bacteria
helps breaking up the structure regard to organic matter, production. The liquid frac- less light is emitted. The by selected toxic com-
O Efficient ammonia removal
of the biomass and makes more nitrogen and phosphorous tion is characterized by low inhibition is quantified by pounds.
nutrition accessible to the mi- O Capacity (tons/hour) concentration of organic mat- means of a luminometer. O Measurement of toxicity
croorganisms, which results in a higher methane production. Furthermore ter and this leads to improved
O Electricity consumption In contrast to chemical ana- to luminescent bacteria
the pre-treatment reduces ammonia in biogas reactors, which makes it nutrients uptake by the crops
(kWh/tons slurry separated) lyses, bacteria tests can specifying limit of deter-
possible to use biomasses with a higher content of nitrogen. As a side when the liquid fraction is ap-
effect the boiler homogenises the biomass. plied to the fields. Thus, slurry evaluate overall toxicity of mination, precision, true-
separation is a way to reduce a sample. The test is fast ness, range of application
nutrient losses to the environ- compared to other toxicity and robustness.
ment. tests (e.g. daphnia, fish),
”It is important that test and verification is carried out by with a test time of only 30
approved and impartial institutions and we are therefore minutes. The test thus allows for fast screening for toxicity in e.g.
very content with the establishment of the verification effluents from wastewater treatment plants and gives possibility for
centre DANETV. This ensures a high degree of certainty of ”Independent tests and verifications
play an important role in the develop- improved traceability of sources of toxicity.
the results and international recognition, which is espe-
cially important to us as the export markets are very inter- ment and marketing of our environ-
ested in pretreatment technologies from GFE and Xergi.” mental technologies in Denmark and ”HACH-LANGE has a long tradition in development and as supplier
other countries.” of high performance water analysis equipment and systems. HACH-
Lars Jørgen Pedersen, Director of board the Board, GFE LANGE is convinced that a joint verification with DANETV, U.S. EPA ETV
Anders Peter Jensen, Research Manager, Xergi Søren Brams, Director, SB Engineering and ETV Canada is of major importance for a global market accept-
ance of the HACH-LANGE LUMIStox and ECLOX Luminescent Bacteria
Test Systems.”
Dr. Elmar Grabert, HACH-LANGE GmbH
Contact Contact Contact
Arne Grønkjær Hansen, Danish Technological Institute, Life Science Thorkild Q Frandsen, AgroTech A/S Mette Tjener Andersson, DHI DANETV Water Centre
+45 7220 2142 · agha@teknologisk.dk +45 8743 8468 · tqf@agrotech.dk + 45 4516 9148 · mta@dhigroup.com
www.teknologisk.dk www.agrotech.dk www.dhigroup.com

2. drYing BioMass in- DANETV
The Danish Centre for Verification of Climate and Environmental Tech-
Creases energY Yield nologies, DANETV, offers independent tests of technologies and products
for the reduction and monitoring of climate change and environmental
impacts. DANETV has been established with financial support from the
New energy efficient steam technology from Cimbria Manu- Danish Ministry of Science, Technology and Innovation.
facturing A/S dries biomass fibre fractions with zero emissions
The Super Heated Steam Drier from Cimbria Manufacturing A/S was veri-
YoUr KeY To
fied by DANETV. The biomass drying technology is tested on a wet manure
fibre fraction and the efficiency is measured as a change in dry matter
TeChnologY areas
DANETV covers technologies addressing some of the most important
green innovaTion
content. climate change and environmental pollution issues:
The drier is based on an evaporation process using overheated steam to O Air emissions
evaporate water from fibrous material. The steam is condensed and the O Energy efficiency and alternative energy production
energy content is recovered and reused in a district heating system. O Water treatment and water monitoring
O Agricultural environment
It makes a difference with
Verification of technology the drying technology
for biomass drying and the verification verified onCe
The verification of the drier With the new drying technology – verified everYWhere
was done for an application a significant increase in the dry
as follows: DANETV works for global recognition of verifications through co-opera-
matter content of the manure fi-
tion with other ETV schemes in the World and provides joint verifications
O Manure fibre fractions bres is achieved. This enables new Proof of performance promotes the use
with e.g. the US ETV scheme on an ad hoc basis.
with high water content possibilities for utilization: The ma- of innovative, green technologies.
above 30% nure fibres are easier to handle in
transportation and pelletizing. The
Implementing smarter environmental
O Increase in dry weight pellets can be used either as a low verifiCaTion technologies faster is in the interests
O Energy balance cost fertilizer since the nutrients re-
mains in the product or as medium The process of verification includes: of the industry, technology users and
energy content biomass fuel. O Definition of application and identification of relevant performance the environment.
parameters
O Evaluation of existing data supporting the verification Environmental technology verification,
“Cimbria Manufacturing develops machinery and equipment for biologi- O Testing to provide missing data ETV, provides the credible and independent
cal treatment world wide. Several of these processes are extremely energy O Verification of performance
intensive. In general Cimbria Manufacturing is continuously determined
proof needed.
O Quality assurance and documentation
towards a developing process where the primary focus is energy optimiza- O Preparation of verificate
tion of the different processes.
All operated according to the guidelines for environmental technology
Consequently it is of major importance for Cimbria Manufacturing that verification that are being developed as part of the establishment of the
the competence of DANETV is applied within verification for environmen- coming EU ETV scheme.
tal technologies “
Søren Kjær,
Manager of Development and Construction – Cimbria Manufacturing A/S
Contact
Marianne Kyed Ørbæk, FORCE Technology
+ 45 4326 7062 · mko@force.dk
www.forcetechnology.dk