Abstract：
:Cost-effective methods for protecting crops from grazing organisms like rotifers are needed to reduce the risk of pond crashes in mass algal cultures. We present a novel strategy to optimize the exposure time to free ammonia, via control of media pH, in both defined media and dairy anaerobic digester effluent to suppress rotifers and maintain algal productivity. We tested five different free ammonia exposure times (0, 1, 2, 6, and 12h) and found a significant nonlinear effect of exposure time (p<0.0001) but not pH (p>0.9) on rotifer survival. In both media types, 6-12h of elevated free ammonia significantly reduced Brachionus plicatilis rotifer survival with no negative effects on Nannochloropsis oculata, while shorter exposure times were insufficient to inhibit rotifers, leading to severe algal culture crashes. These results suggest that algal crops can be protected from rotifers, without productivity loss, by elevating free ammonia for 6 or more hours.
journal_name
Bioresour Technoljournal_title
Bioresource technologyauthors
Thomas PK,Dunn GP,Passero M,Feris KPdoi
10.1016/j.biortech.2017.07.008subject
Has Abstractpub_date
2017-11-01 00:00:00pages
724-730eissn
0960-8524issn
1873-2976pii
S0960-8524(17)31094-5journal_volume
243pub_type
杂志文章abstract：:This study investigates the production potential of bio-crude from wastewater treatment high rate algal pond (WWT HRAP) biomass in terms of yield, elemental/chemical composition and higher heating value (HHV). Hydrothermal liquefaction (HTL) of the biomass slurry (2.2wt% solid content, 19.7kJ/g HHV) was conducted at a...
journal_title：Bioresource technology
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journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2014.05.024
更新日期：2014-08-01 00:00:00
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doi：10.1016/j.biortech.2015.03.134
更新日期：2015-01-01 00:00:00
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doi：10.1016/j.biortech.2012.08.044
更新日期：2012-11-01 00:00:00
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doi：10.1016/s0960-8524(01)00053-0
更新日期：2001-09-01 00:00:00
abstract：:Co-location of algae production facilities with cane sugar mills can be a technically advantageous path towards production of biodiesel. Algal biodiesel production was integrated with cane sugar production in the material and energy balance simulation program Sugars™. A model was developed that allowed comparison of p...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2011.12.035
更新日期：2012-03-01 00:00:00
abstract：:A N-doped couping MgO-modified biochar (MgO-N-BC) was synthesized from corncob-to-xylose residue by two-step slow pyrolysis method. The biochar exhibited a remarkable Pb(II) sorption capacity (maximum 1429 mg·g-1) in aqueous solution. The sorption of Pb(II) onto MgO-N-BC best fitted Freundlich model and pseudo-second-...
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更新日期：2020-10-01 00:00:00
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更新日期：2003-08-01 00:00:00
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更新日期：2012-10-01 00:00:00
abstract：:The potential of rice husks and straw as adsorbents after being processed by subcritical water hydrolysis (SWH) was investigated. The influences of temperature (453, 493 and 533 K) and liquid/solid ratio (7.5 and 15 g water/g biomass) on the rice straw and rice husks characteristics and on the adsorption capacity of 2...
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abstract：:Two novel two-step pretreatments for enzymatic hydrolysis of rice hull (RH) were proposed to lower the severity requirement of fungal pretreatment time. They consisted of a mild physical or chemical step (ultrasonic and H(2)O(2)) and a subsequent biological treatment (Pleurotus ostreatus). The combined pretreatments l...
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更新日期：2009-01-01 00:00:00
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更新日期：2014-02-01 00:00:00
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journal_title：Bioresource technology
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更新日期：2013-10-01 00:00:00
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