The Green Optimistic says marginal Lands may be the future for sustainable bioenergy production. A recent study from the University of Maryland describes how land deemed unsuitable for growing food crops – called marginal land – can be used as a source to produce alternative energy fuels by using biomass and grasses grown on that land. Today, marginal lands go largely unused. The study estimates how much potential exists for biomass production from marginal lands and suggests the production of alternative fuel might be increased by specially selecting marginal lands to maximize biomass production. The paper is in response to concerns that humans are increasing the price of certain foods (eg. corn) by using them to make energy (eg. ethanol) rather than food products. By using marginal land to grow energy crops there is the opportunity to ensure arable land continues to be used for food production. Another study by researchers at Michigan State University reach a similar conclusion according to hydrgenfuelnews. In Alternative energy goals may be reached through use of marginal lands we learn that marginal lands can be used to host wind farms and solar panels as well as grow several species of cellulosic biomass for energy production.

A court in the US has ruled that the federal Environmental Protection Agency cannot mandate the use of non-existent biofuels for use as fuel in internal combustion engines to lower greenhouse gas emissions. The Daily Caller notes the agency exceeded its authority in 2012 by mandating petroleum refiners to use cellulosic biofuels in the production of gasoline and diesel when these fuels are not yet commercially available. The court decision does not interfere with the existing mandate for refiners to use ethanol and biodiesel which are readily available.

Bioenergy Insight reports Belgium is opening an algae-to-biogas operation. The pilot facility in Roeselare, Belgium will investigate technologies for algal biomass production, bioenergy and greenhouse gas mitigation. When it opens in March the plant will look at how microalgal bacterial flocs can be used to treat wastewater, and then be harvested and converted anaerobically into biogas,

Material Recycling World tells us UK renewable energy output, including from biomass and biogas, is set to double over the next five years. Energy company EDF projects that renewable energy generation is expected to reach 75 TWh by 2017, making up around 20% of the UK’s total electrical generation capacity.

Energy from biomass output will have risen 246%, an increase of 11,299 MWh, in the ten years from 2007 to 2017, while biogas output will increase by 49 MWh, a rise of 1,506%, according to EDF’s research. Landfill gas generation is predicted to be 749 MWh from 2007-2017, an increase of 16%.

Lohja, Finland has a new bioenergy facility we learn from Bioenergy Insight. The plant will produce an annual total of 160,000 MWh of heat to the Lohja district heating network with any additional processed steam going into a neighbouring lumber mill. More than 80% of the fuel consumed by the process is wood-based.

Azocleantech tells us everything you wanted to know about anerobic digestion, an increasingly popular organic process which coverts food and other waste into energy (biofuel, electricity).

The New York Daily News posted ‘Cow power’ turns manure into clean energy. Farms across the northeastern US have begun employing anerobic digesters, using cow manure as a fuel source, to create enough electricity to supply not only their farms but, in some cases, surrounding towns, as well. Currently there are about 100 cow-power facilities in the US according to the American Council on Renewable Energy.

The Detroit Free Press discusses a newly opened anerobic digester in Fremont in the US state of Michigan. Using food wastes and livestock manure, the Fremont Community Digester generates 3 MW of electricity, enough power to supply 12oo homes. The electricity is sold to a local utility company under a 20-year contract. The leftover product of the bacteria digestion is sold as fertilizer.

UK renewable energy specialist, ENER-G is building 3 landfill-to-energy operations in England according to Waste Management World.  The landfills are located in at Blaydon, near Newcastle; Longhill, Hartlepool; and Gilberdyke, Hull. Together the three sites will generate 3.8 MW of electricity, sufficient to power 3800 homes. Over the past decade ENER-G has designed, built and operated more than 100 landfill gas facilities, providing in excess of 160 MW of generation capacity.










Tags: , , , , , , , , , , , , , , ,

1 Comment on Waste to Energy News (Part 1)

  1. imir says:

    باسلام کعبی از ایران از فعالان انرژی سبز هستم که توانستم گاز هیدروژن را در آزمایشگاه شخصی بصورت انبوه تولید کنم ،وبا ترکیب آن با (cng) سوخت ترکیبی (h2 cng )معروف به گاز عیدان تولید کنم.
    با مصرف سوخت تركیبی هیدروژن و گاز فشرده طبیعی می‌توان میزان آلاینده‌های اگزوز خودروها را به صفر نزدیك كرد و برد خودرو را نسبت به CNGافزایش داد. كمبود سوخت­های فسیلی و نیز پیش­بینی اتمام آن در آینده نزدیك خطری است كه نسل موتورهای احتراق را تهدید می‌كند و درصورتی­كه علاقه‌ای به بقای این موتورها باشد، متخصصان انرژی و موتور باید با صرف وقت و سرعت بیشتری در جستجوی سوخت­های مناسبی باشند. مورد دیگری كه یافتن سوخت­های جایگزین را مهم كرده و شاید از مورد اول نیز مهم­تر تلقی شود، بحث سالم‌سازی و سالم نگهداری محیط زیست است. با توجه به مشكلاتی كه بی‌توجهی نسبت به آلودگی‌های احتراق پیش آورده ‌بود، مسوولان كشورها را مجبور به وضع قوانین سختی در دو دهه اخیر كرد. این كار زنگ خطر را برای تولیدكنندگان موتور و خودرو به صدا در آورد، زیرا در صورتی­كه شرکت سازنده‌ای نتواند تولیدات خود را با استانداردهای بازار تطبیق دهد، محصولاتش حق ورود به آن بازارها را نداشته و با توقف تولید روبرو خواهد شد. برای رسیدن به استانداردهای مورد نظر در دو زمینه باید كار شود، یكی در زمینه نزدیك كردن احتراق به ‌احتراق با نسبت استكیومتریك كه این مورد مربوط به متخصصان و طراحان موتور خواهد شد و دیگری مربوط به سوخت مصرفی خواهد شد كه در این زمینه كار مشترك متخصصان موتور و سوخت را می‌طلبد و یكی از این موارد، استفاده از سوخت هیدروژن می‌باشد. هیدروژن یكی از سوخت­هایی است كه پیش بینی می‌شود در نهایت ضامن بقای نسل موتورهای احتراق داخلی باشد چراكه منبع تهیه آن كه همان آب است فراوان بوده و مسأله تمام­شدن آن مطرح نیست. از مشكلات استفاده از این سوخت، بحث حمل و نقل و نگهداری و میل تركیبی آن با اكسیژن است. از آنجایی كه در استفاده از سوخت هیدروژن به طور فراگیر ناكامی‌هايی به­وجود آمد، كشورها استفاده از سوخت­های گازی را پیش روی خود قرار دادند.