Anaerobic digestion of mixed silage of waterweed biomass and wheat straw in a long-term semi-continuous biogas production process Aline Bauer1, Lucie Moeller1, Harald Wedwitschka2, Walter Stinner2 and Andreas Zehnsdorf1* Abstract Background: As part of the maintenance of lakes and rivers, large quantities of aquatic biomass are produced every year. ��n�u��� Y�ͺvӱ��y���L%O �q��U^��[R��)��8�Q�ZS�m�OB�lr��iy1�4N�v�dm��1 This is the source of marsh gas methane as discovered by Alessandro Volta in 1776. A much wider application of the tech-nology is desirable in the current endeavours towards sustainable development and renewable energy production. The European Union has commited itself to an average reduction of GHG emissions … 0000093844 00000 n Thermophilic digestion. AD is one of the oldest biotechnologies used to produce an energy carrier, i.e., biogas, from organic waste. Dölle K. Diagram of Upflow Anaerobic Fixed Bed (UAFB) reactor. During anaerobic digestion, methane and carbon dioxide are produced. Anaerobic treatment is the use of biological processes, in the absence of oxygen, for the breakdown of organic matter and the stabilization of these materials by conversion to methane and carbon dioxide gases and a nearly stable residue [3]. biomass in a thermal process (e.g. The total anaero-bic biodegradability is measured by the total amount of methane produced during a retention time of at least 50 days. 412 0 obj << /Linearized 1 /O 416 /H [ 1680 639 ] /L 738655 /E 138664 /N 29 /T 730296 >> endobj xref 412 22 0000000016 00000 n Optimizing high rate anaerobic digestion allows for consistently producing 80% methane concentrations from processing of organic matter including animal waste, sewage, algae and lignocellulosic biomass feedstocks (Ghose et al., 1979 ). �ǧ)z��-!�hh�LE�����1Uxt��yDH�)�Go �v�+,�r)�S���� LL��^�:Y����X �[Gou��4��F덐 �/��g����ۖ,��"4~p�j endstream endobj 433 0 obj 509 endobj 416 0 obj << /Type /Page /Parent 406 0 R /Resources << /ColorSpace << /CS2 418 0 R /CS3 417 0 R >> /ExtGState << /GS2 431 0 R /GS3 430 0 R >> /XObject << /Im2 426 0 R /Im3 425 0 R >> /Font << /TT2 421 0 R /TT3 424 0 R >> /ProcSet [ /PDF /Text /ImageC ] >> /Contents 419 0 R /Rotate 90 /MediaBox [ 0 0 612 792 ] /CropBox [ 37 37 575 755 ] /StructParents 0 >> endobj 417 0 obj /DeviceGray endobj 418 0 obj [ /ICCBased 429 0 R ] endobj 419 0 obj << /Filter /FlateDecode /Length 422 0 R >> stream Mesophilic digestion is the most commonly used process for anaerobic digestion, in particular waste sludge treatment. Anaerobic digestion system Energy balance Dr Yue Zhang Lecture 13, Thursday 15th August 2013 ... biomass anaerobic digester ry s, n digestate storage bio-fertiliser tanks l ry construction CHP electricity heat construction boundary electricity heat ��� trailer << /Size 434 /Info 410 0 R /Encrypt 414 0 R /Root 413 0 R /Prev 730285 /ID[<0c9cec25d79738d4ad72fefc76f7f138><19dc4396815eb5aa104d55fdc8f9c003>] >> startxref 0 %%EOF 413 0 obj << /Type /Catalog /Pages 407 0 R /Metadata 411 0 R /Outlines 108 0 R /OpenAction [ 416 0 R /Fit ] /PageMode /UseNone /PageLayout /SinglePage /PageLabels 405 0 R /StructTreeRoot 415 0 R /PieceInfo << /MarkedPDF << /LastModified (o��I��Ye���@�)>> >> /LastModified (o��I��Ye���@�) /MarkInfo << /Marked true /LetterspaceFlags 0 >> >> endobj 414 0 obj << /Filter /Standard /R 2 /O (k��yB��q��x�ھ�sp�4fj}�ʕJ��0) /U (yt4i]��"f�%��jHW@��/��Jp) /P -60 /V 1 /Length 40 >> endobj 415 0 obj << /Type /StructTreeRoot /ParentTree 122 0 R /ParentTreeNextKey 29 /K [ 133 0 R 140 0 R 158 0 R 179 0 R 195 0 R 203 0 R 209 0 R 224 0 R 240 0 R 250 0 R 256 0 R 266 0 R 272 0 R 278 0 R 284 0 R 291 0 R 297 0 R 303 0 R 308 0 R 312 0 R 316 0 R 320 0 R 327 0 R 343 0 R 351 0 R 363 0 R 377 0 R 385 0 R 399 0 R ] /RoleMap 403 0 R >> endobj 432 0 obj << /S 573 /O 647 /L 663 /C 679 /Filter /FlateDecode /Length 433 0 R >> stream If any provision of this article or the application to any person or circumstance is held invalid, the invalidity shall not affect any other provisions or application of this article that can be given effect without the invalid provision or application. 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