{"id":5792,"date":"2019-12-20T14:27:35","date_gmt":"2019-12-20T13:27:35","guid":{"rendered":"https:\/\/www.biobang.com\/web\/?p=5792"},"modified":"2023-05-22T11:21:06","modified_gmt":"2023-05-22T09:21:06","slug":"verbesserung-der-effizienzproduktion-der-taeglichen-fuetterung-von-stroh-und-schweinemist-15","status":"publish","type":"post","link":"https:\/\/www.biobang.com\/web\/de\/verbesserung-der-effizienzproduktion-der-taeglichen-fuetterung-von-stroh-und-schweinemist-15\/","title":{"rendered":"Verbesserung der effizienz der t\u00e4glichen futterung von stroh- und schweinemist \u00fcber 15%"},"content":{"rendered":"\n
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FARM RENEWABLES \u2013 BROADLEY ENERGY<\/h3>\n\n

Broadley Energy, owned by Farm Renewables, installed a BioBANG<\/span> to recirculate digestate to reduce the viscosity and generate more biogas.<\/p>\n\n\"Broadley\n

Pict.1<\/strong>: BioBANG in Broadley Energy biogas plant, built by BioConstruct<\/i><\/div>\n\n

DESCRIPTION<\/h3>\n

Farm Renewables is an UK company that works in the renewable energy sector and with their preferred technology provider, BioConstruct GmbH, has now constructed two AD plants in southern England.<\/p>\n\n

One of the AD plants that Farm Renewables owns and operates is “Broadley Energy\u201d and the plant is located near to Chichester on the south coast of England.<\/p>\n\n

The AD plant is designed to generate 1800 kW\/h of electricity. It has two primary digesters that operate in parallel and has two 900kW\/h 2G CHP units.<\/p>\n\n

The original Feeding plan was:<\/p>\n

\n\n\n\n\n\n
Biomass Type<\/td>\nDry Matter<\/td>\nQuantity T\/day<\/td>\n<\/tr>\n
Corn Silage<\/td>\n33%<\/td>\n30<\/td>\n<\/tr>\n
Straw<\/td>\n75%<\/td>\n15<\/td>\n<\/tr>\n
Pig Manure<\/td>\n17%<\/td>\n70<\/td>\n<\/tr>\n<\/table>\n<\/div>\n
Tab. 1 <\/strong>\u2013 Daily feeding of Broadley Energy Farm\u2019s plant before BioBANG installation.<\/i><\/div>\n\n

Broadley Energy was developed to take all the manure from the pig farm next to the AD plant where 50,000 pigs are fattened each year. The pig farm produces more than 20,000 tonnes of manure with a high concentration of straw.<\/p>\n\n

Given high concentration of straw, Farm Renewables started to look for a pretreatment solution to increase straw digestibility in the manure and to make it produce more gas, without increasing the plant\u2019s retention time. Without pretreatment, the straw in the manure was causing problems concerning the viscosity of the substrate, potentially crust formation and an increase in mixer use in the digesters and hence more electricity used.<\/p>\n\n

Broadley Energy uses steam explosion, a pretreatment technology for its straw. The technology uses steam at high temperatures to explode all the straw before it is fed into the digesters.<\/p>\n\n

Steam Explosion helps increase the amount of straw loaded in the fermenters each day as after treatment it enters the digesters at max 32% DM. the company now mixes the exploded straw with digestate and water to bring down the DW. However, they started to have the operational issues because <\/p>\n\n

The straw used at Broadley Energy has a high stone content and the stones periodically clog the pipework to the digesters. Broadley Energy has now fitted a hedgehog belt (similar to those used on a carrot harvester) to ensure all stones are removed before the steam explosion process.<\/p>\n\n

Given the problems Broadley Energy was experiencing with the total volume of the straw in the pig manure in its daily feed ration, the company needed a solution to assist break the straw and the fiber content down. They chose the BioBANG<\/span> cavitation technology. <\/p>\n\n

BioBANG<\/span> was installed at Broadley Energy AD plant in June 2018 to work in recirculation alternately on the 2 primary digesters. BioBANG<\/span> works with a Flow Rate of 2.5 m³\/h and an Energy Rate of 10 kW\/m³.<\/p>\n\n

\n\n\n\n\n\n\n
BioBANG Data<\/td>\n<\/tr>\n
Starting Date<\/strong><\/td>\nJune 2018<\/td>\n<\/tr>\n
Installation method<\/strong><\/td>\nIn recirculation on both the 2 F1<\/td>\n<\/tr>\n
Flow rate<\/strong><\/td>\n2,5 m³\/h<\/td>\n<\/tr>\n
Energy rate<\/strong><\/td>\n10 kW\/m³\/h<\/td>\n<\/tr>\n<\/table>\n<\/div>\n
Tab. 2 <\/strong>\u2013 BioBang\u2019s Technical data and installation method on Broadley Energy Farm AD Plant.<\/i><\/div>\n\n

RESULTS OBTAINED AFTER 6 MONTHS<\/h3>\n

After 6 months from the installation of BioBANG<\/span>, Farm Renewable recorded the following results:\n

    \n
  1. Better efficiency in the plant\u2019s ability to digest straw and silage:<\/span>\nFarm Renewables noticed that with BioBANG<\/span> pretreatment, they increased the straw digestibility. BioBANG<\/span> in recirculation works as a process treatment. Straw is treated only after it has been loaded into the digesters.\n<\/li>\n
  2. \nViscosity\u2019s Improvement in the digesters:<\/span>\nAlready after 6 months, BioBANG<\/span> has improved the substrate\u2019s viscosity inside the digesters up to 40%. This has enabled Broadley Energy to reduce the amount of feedstock as more gas is produced and when BioBANG<\/span> is in operation, the risk of crust and the workload of the mixers is reduced.\n<\/li>\n
  3. Daily Feeding optimization:<\/span>\nThanks to viscosity reduction and the increase in fiber digestibility, Farm Renewables has reduced the daily quantities of corn and rye silage and added more tons of pig slurry with straw and straw.\n<\/li>\n<\/ol>\n<\/p>\n\n
    \n\n\n\n\n\n
    Biomass Type<\/td>\nDry Matter <\/td>\nQuantity t\/day <\/td>\n<\/tr>\n
    Corn silage<\/td>\n33%<\/td>\n25<\/td>\n<\/tr>\n
    Straw<\/td>\n75%<\/td>\n15<\/td>\n<\/tr>\n
    Pig manure<\/td>\n20%<\/td>\n50<\/td>\n<\/tr>\n<\/table>\n<\/div>\n
    Tab. 3 <\/strong>\u2013 Daily feeding after BioBANG installation.<\/i><\/div>\n\n\n\n
    Graph. 1 <\/strong>\u2013 Difference between crops quantity before and after BioBANG installation.<\/i><\/div>\n\n

    Farm Renewables has reduced daily quantities of corn silage to 25 tonnes per day and reduced the pig manure from 70 tonnes to 50 tonnes per day. The straw put through steam explosion remains the same. In this way Farm Renewables saves 5 tonnes per day of corn silage, and 20 tonnes per day of pig manure, obtaining an economic saving from the cost of the daily feeding. The BioBANG<\/span> power consumption was partially offsetting with the feedstock saving.\n<\/p>\n\n

    The biggest benefit that Farm Renewables obtained from BioBANG<\/span>‘ operation is the increase in the digestibility of the fibers contained in the straw that is in the pig manure.\n<\/p>\n\n

    BioBANG<\/span> breaks the fiber\u2019s bonds, making it more accessible to bacteria. This effect leads to an increase in straw digestibility. In this way, Broadley Energy Farm\u2019s plant obtains a greater gas quantity from straw up to a maximum of 15%, in the plant\u2019s 60 day retention time.\n<\/p>\n\n

    \nThis effect was seen by the technicians of Farm Renewable\u2019s group and of BioConstruct company that monitoring the yield of the plant for the first 6 months of BioBANG<\/span> operation:\n<\/p>\n\n\n

    \n\n\n\n\n
    Production without BioBANG<\/td>\n <\/td>\nProduction with BioBANG<\/td>\n<\/tr>\n
    Daily Production (kWh\/day)<\/td>\n13740<\/td>\nDaily Production (kWh\/day)<\/td>\n15800<\/td>\n<\/tr>\n
    Annual Production (kWh\/year)<\/td>\n5015100<\/td>\nAnnual Production (kWh\/year)<\/td>\n5767365<\/td>\n<\/tr>\n<\/table>\n<\/div>\n
    Tab. 4 <\/strong>\u2013 Production of the plant without and with BioBANG.<\/i><\/div>\n\n\n

    Technicians noticed that gas daily production and kW that plant obtains from the optimized feeding with straw and pig manure with litter, produces 15%<\/span> more with BioBANG<\/span>.<\/p>\n\n\n

    \n\n\n\n\n
    Profit with BioBANG<\/td>\n <\/td>\nEfficiency increase with BioBANG<\/td>\n<\/tr>\n
    Daily Production (kWh\/day)<\/td>\n2060<\/td>\n15%<\/span><\/td>\n<\/tr>\n
    Annual Production (kWh\/year)<\/td>\nEFFICIENCY INCREASE WITH BioBANG<\/td>\n<\/tr>\n<\/table>\n<\/div>\n
    Tab. 5 <\/strong>\u2013 Productive yields and increased efficiency obtained with BioBANG.<\/i><\/div>\n\n

    CUSTOMER DIRECT EXPERIENCE<\/h3>\n

    \nInterview with Malcom McAllister, owner and president of Farm Renewables group:\n<\/p>\n

    \n <\/div>What are the reasons that led you to install BioBANG<\/span> on your system?<\/span>\nOur company was looking for increased gas production and increase viscosity for its Broadley Energy Plant and to increase straw digestibility. \nWhat kind of results did you achieve after starting BioBANG<\/span> on your system?<\/span>\nWith BioBANG<\/span> we achieved the goals we set when we decided to take a treatment technology that help us to increase the gas production from the substrate. The first benefit we noticed was a big viscosity reduction in digesters. However, the biggest benefit is that the gas production increased by up to 15% with the cavitation pretreatment given by BioBANG<\/span>.

    \n\nWhat future developments do you foresee for your plant and what will be the next goals you will want to achieve?<\/span>\nOur future goals are to reduce the quantities of corn silage more and replace it with steam exploded straw, but thanks to the BioBANG<\/span> we can manage the digested process and the retention times of our plant. Following our experience at Broadley Energy, we decided to install a second BioBANG<\/span> unit at our new biogas plant in Kent on the east coast of England that will be fed on corn silage, chicken manure, waste fruits and straw\n\n

     <\/p>\n\n

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    \nBUCHEN SIE MIT BioBANG\u00ae<\/span> IHRE TEST<\/a>\n<\/div>\n<\/div>\n\n<\/div>\n
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