1997/1/1/ · Aerobic Bioreactor Retention Time on Crop Residues 2027 Figure 5 shows the effects of retention time on degradation of the soluble organic compounds, measured as soluble TOC, that quickly leach from wheat residues. At all retention times studied, from 1.3 to 21.3 days, soluble TOC degradation was near 80%. These soluble organics are so
2023/9/15/ · Crop residues are a precious commodity (Fig. 9.1).They have a value, although sometimes they are misguidedly considered “waste” or “trash.” Crop residues are multifunctional and are used for a number of purposes (Fig. 9.3), but their primary function is to conserve soil and water.The four main competing uses are soil and water
Denitrifying bioreactors can be effective for removing nitrate from agricultural tile drainage, however, questions about cold springtime performance persist. reductase gene (nosZ) was supported by crop residues than WC at 15.5°C, and CS and BS supported greater abundance than WC at 1.5°C. Production of N 2 O relative to nitrate removal ...
2021/12/1/ · Heng et al. (2017) compared the PHA production in the shake flask and 5 L bioreactor by B. cepacia USM using rice husk hydrolysate. When using a 5 L bioreactor, CDW increased by 2.9 g/L, while PHA content increased by 10%. It implies the potential and feasibility for the scale-up of PHA production from food crop residues.
2022/5/1/ · manufacturer, and palm oil m ill effluent [24, 26]. [26] fertilizer should be used for a particular crop plant and applied . ... bioreactors, Equation 8 descri bes ...
The goal is to determine the shortest retention time that is feasible for processing CELSS crop residues, thereby reducing bioreactor volume and weight requirements. Pushing the lower limits of bioreactor retention times will provide useful data for engineers who need to compare biological and physicochemical components. Bioreactor retention
2016/2/1/ · They are biodegradable, rich in organic matter and can be used for methane production by anaerobic digestion [7]. In 2012, 846 million tons crops residues and 3.21 billion tons livestock manure were produced in China. If these wastes are utilized for anaerobic fermentation, 4.23×10 11 m 3 biogas could be produced [8].
2023/8/18/ · Nitrate (NO3−) is highly water-soluble and considered to be the main nitrogen pollutants leached from agricultural soils. Its presence in aquatic ecosystems is reported to cause various environmental and public health problems. Bioreactors containing microbes capable of transforming NO3− have been proposed as a means to remediate
这项研究评估了新型瘤胃膜生物反应器（rumen-MBR）从农作物残留物（即木质纤维素生物质）生产挥发性脂肪酸（VFA）的可行性。Rumen-MBR通过模仿反刍动物的消化系统，可以为VFA生产提供可持续的途径。将瘤胃液接种在装有超滤（UF）膜的反应器中，并以60：40％（w / w）的玉米青贮饲料和浓缩饲料进料。
2024/6/1/ · Crop residues constitute cheap, renewable and abundant resources [81]. Production of crop residues is increasing as Cherubin et al. [82] estimated the global crop residues production from 2003 to 2013 and reported that about 3607.6 × 10 6 Mg of crop residues were produced from different crops (i.e cerals, barley, corn, millet, rice, wheat
2023/9/1/ · Other potential by-products suitable for use in Green Biorefinery systems include hemp scrapes and leaves, kale and broccoli leaves, cassava leaves, maize stems, flax processing residues as well as residues and juices from fresh vegetable production (Ayele et al., 2021; Kromus et al., 2005; Prade et al., 2021). 3.
The objective of this study was to improve the nitrate removal rate (NRR) of denitrifying bioreactors at warm and cold temperatures using agriculturally derived media rather than wood chips (WC). Corn ( L.) cobs (CC), corn stover (CS), barley ( L.) straw (BS), WC, and CC followed by a compartment of WC (CC+WC) were tested in laboratory columns
2022/9/25/ · Approximately one kg of each sun-dried crop residue was oven-dried for 2 h at 105 °C in a hot air oven. After drying, the crop residues were crushed in a grinder and sieved with Indian Standard sieves to 2–3 mm particle size. Prepared crop residue samples were shorted and stored in a laboratory-controlled environment for biochar conversion.
A literature review has been conducted on the current crop residue biomass valorization, analyzing raw material properties and the potential risks associated with its incorrect or
2017/4/1/ · Technology of bio-hydrogen production from crop residues were reviewed. • Pretreatment and substrate structure were discussed. • Hydrogen from pure bacteria, consortia and mutants were discussed. • Geometry, light source and mass …