摘要:
A system and method of recycling organic waste into biogas, implementing an anaerobic digestion processes, is disclosed. The system includes structural scaffolding and a pliable collapsible anaerobic digester. The aerobic digester includes at least one suspension tab, rendering the anaerobic digester suspendable from the structural scaffolding. A respective kit-of-parts is disclosed for assembling the aforementioned system.
摘要:
Biomass (e.g., plant biomass, animal biomass, and municipal waste biomass) is processed to produce useful intermediates and products, such as energy, fuels, foods or materials. Systems, methods and equipment are described for upgrading process streams using electrodialysis or electrodialysis reversal.
摘要:
Verfahren zur Herstellung einer Struvit-Ablagerungen in Rohrleitungen (17, 18) beseitigenden Reinigungsflüssigkeit, mit den Schritten: Erzeugen eines Kondensats (2) aus Rohbiogas (3), Zuführen eines Gases zum Kondensat zum Verdrängen des im Kondensat gelösten Kohlendioxids bei gleichzeitigem Ausgasen des im Kondensat gelösten Ammoniaks, Sieden des Kondensats (2) zum Ausgasen des im Kondensat (2) gelösten Ammoniaks, Zuführen von Kohlendioxid (10) zum von Kohlendioxid und Ammoniak weitgehend befreiten Kondensat bis das Kondensat einen sauren pH-Wert aufweist, und Bereitstellen des Kondensats mit einem sauren pH-Wert als Struvit-Ablagerungen in Rohrleitungen beseitigende Reinigungsflüssigkeit.
摘要:
This document describes biochemical pathways for producing isoprene by forming two vinyl groups in a central precursor produced from isobutyryl-CoA, 3-methyl-2-oxopentanoate, or 4-methyl-2-oxopentanoate as well as recombinant hosts for producing isoprene.
摘要:
An apparatus and method for selecting, retaining or bioaugmenting solids in an activated sludge process for improving wastewater treatment using screens. The screens can be used to separate and retain solids based on size, compressibility or shear resistance. The screens are used to separate and select slow growing organisms, faster settling organisms, or materials added to absorb, treat or remove constituents in the activated sludge process. A swapping screen arrangement provides another means of selecting various particles. The exposed shear rate or time, particle compression, or SRTs can be adjusted manually and/or automatically in response to detected readings from an instrument such as a spectrophotometer or other optical approaches to optimize selection of organisms. The present disclosure may be configured as an activated sludge system operated at different solids residence times (SRT) for different solids fractions allowing slow growing organisms to get established in competition with faster growing organisms or aggregates thereof.
摘要:
A method for producing H2, methane, VFAs and alcohols from organic material, including the steps of introducing organic material and microorganisms into a completely mixed bioreactor for producing H2, CO2, VFAs, and alcohols; recovering H2 and CO2; recovering a first liquid effluent including microorganisms, VFAs, and alcohols; introducing the first liquid effluent into a gravity settler for separating into a first biomass including microorganisms and a second liquid effluent including VFAs, alcohols and microorganisms; introducing the second liquid effluent into a separation module for separating into a second biomass including microorganisms and a third liquid effluent including VFAs and alcohols; recovering at least a portion of the third liquid effluent; and providing a recovered biomass by recovering at least a portion of the first biomass, the second biomass, or both, and introducing the recovered biomass into a biomethanator for production of CH4 and CO2.
摘要:
Biomass feedstocks (e.g., plant biomass, animal biomass, and municipal waste biomass) are processed to produce useful products, such as fuels, heat and energy.
摘要:
An acid-impregnated activated carbon matrix is formed from a carbonaceous material by the addition of a mineral acid, and may be used to chemisorb ammonia from a gas stream. The ammonia reacts with the acid to form a fertilizer salt. The spent matrix may be used as a fertilizer, or the fertilizer salt may be elutriated from the matrix.