tag:blogger.com,1999:blog-19508699.post5107651329427246214..comments2024-03-13T18:55:49.391+00:00Comments on Energy Balance: Could Peak Phosphate be Algal Diesel's Achilles' Heel?Professor Chris Rhodeshttp://www.blogger.com/profile/12060542089215379056noreply@blogger.comBlogger18125tag:blogger.com,1999:blog-19508699.post-60435123548677710822021-06-15T11:49:09.712+01:002021-06-15T11:49:09.712+01:00Thank you for sharing this information
RENEWABLE...Thank you for sharing this information<br /><br /><a href="https://www.aakash.green/" rel="nofollow"> RENEWABLE ENERGY COMPANY IN UAE </a> <br />Rahul Kumarhttps://www.blogger.com/profile/11846733768828911334noreply@blogger.comtag:blogger.com,1999:blog-19508699.post-68133313313454595502019-09-22T06:54:24.397+01:002019-09-22T06:54:24.397+01:00Live Cricket Streaming Smartcric Live On iPhone/iP...Live Cricket Streaming Smartcric Live On iPhone/iPad and android Online Streaming<br />https://www.cricpslt20.net/smartcric-live-streaming/Pescohttps://www.blogger.com/profile/14649763818442526873noreply@blogger.comtag:blogger.com,1999:blog-19508699.post-2854100697537032762012-06-26T08:33:51.810+01:002012-06-26T08:33:51.810+01:00To VLFarming, thanks for alerting us to you blog, ...To VLFarming, thanks for alerting us to you blog, which looks very informative.<br /><br />Regards,<br /><br />ChrisProfessor Chris Rhodeshttps://www.blogger.com/profile/12060542089215379056noreply@blogger.comtag:blogger.com,1999:blog-19508699.post-50008760479066167532010-10-04T08:15:26.084+01:002010-10-04T08:15:26.084+01:00Dear Oliver,
a very good point. I guess this coul...Dear Oliver,<br /><br />a very good point. I guess this could all be part of a grand strategy to actually accrue phosphorus rather than use it up. Thus, this might help all of agriculture.<br /><br />Thanks for your thought!<br /><br />Chris.Professor Chris Rhodeshttps://www.blogger.com/profile/12060542089215379056noreply@blogger.comtag:blogger.com,1999:blog-19508699.post-55928333636561444852010-09-25T14:32:35.510+01:002010-09-25T14:32:35.510+01:00Could it be the other way round? That in the futur...Could it be the other way round? That in the future we will need algae to get the phospate for agriculture out of phosphate-rich ocean currents?Oliver Glasslnoreply@blogger.comtag:blogger.com,1999:blog-19508699.post-57057013941197885072009-11-30T06:46:21.819+00:002009-11-30T06:46:21.819+00:00Hi Monica,
I hadn't heard of the fish-solutio...Hi Monica,<br /><br />I hadn't heard of the fish-solution but it looks like an integrated approach as is necessary to solve the problem.<br /><br />Too much is wasted in terms of resources and energy and introducing such "feedbacks" is vital.<br /><br />Regards,<br /><br />Chris.Professor Chris Rhodeshttps://www.blogger.com/profile/12060542089215379056noreply@blogger.comtag:blogger.com,1999:blog-19508699.post-91519040363544715832009-11-30T06:14:19.066+00:002009-11-30T06:14:19.066+00:00O.K. that's very reassuring and looks to me as...O.K. that's very reassuring and looks to me as though we do have a potential or partial solution to hand.<br /><br />Regards,<br /><br />Chris.Professor Chris Rhodeshttps://www.blogger.com/profile/12060542089215379056noreply@blogger.comtag:blogger.com,1999:blog-19508699.post-33794345348456374732009-11-29T21:15:13.243+00:002009-11-29T21:15:13.243+00:00"Recycling phosphorus from manure and other k..."Recycling phosphorus from manure and other kinds of plant and animal waste appears to be the only means to maintain agriculture at its present level, and certainly if its activities will be increased to include growing algae. In principle too, the phosphorus content of the algal-waste left after the oil-extraction process could be recycled into growing the next batch of algae. These are all likely to be energy-intensive processes, however, requiring "fuel" of some kind, in their own right." No they are not necessarily energy intensive!<br />Properly designed it happens almost automatically. The livestock need to drink and already frequently have ponds and pools to drink from, many of which are positioned close enough to the quantities of animal poo to dirty the water anyway. Simply keep the muddy manure of the livestock pens around the ponds and the run off will automatically go into them or at-least transportation is minimized to yards and not miles. sure some light weight minimal redesign of most existing farms will be required but that can be as simple as re organizing the fences and digging the ponds int he right places. (plus its not an additional reduction in arable land since the live stocks trampled land is already used and not plant able with them on it.) <br /><br />Likewise the simple act of composting the algae remains and using that compost then to feed the algae requires practically no energy input from our side except to transfer to a near by compost site and wait (once you get the process going the time delay between start of finish of each batch of compost becomes irrelevant as they each become "ripe" sequentially ensuring a constant stream of ready batches of composted algae feed).T. Hendlinhttp://biatech.biznoreply@blogger.comtag:blogger.com,1999:blog-19508699.post-12804332737632566692009-11-29T16:33:59.439+00:002009-11-29T16:33:59.439+00:00Great blog! good discussion! Have any of you consi...Great blog! good discussion! Have any of you considered growing certified organic marine algae in ponds with parallel production of organic Tilapia fish, that feed on the algae leftovers (after oil extraction and on the approximately 15-20% of the algae that stays in the saltwater after harvesting), and in turn create nutrients in the form of their bodily wastes, which are further refined by organic shrimp? That is what Bio-Lipidos de Puerto Rico is trying to do. We also use waste industrial CO2 as additional source of food for the algae. For more info, email me at guayabapr@gmail.com.guayabaprhttps://www.blogger.com/profile/00345706726947414150noreply@blogger.comtag:blogger.com,1999:blog-19508699.post-48749740447163319742009-07-19T15:31:20.869+01:002009-07-19T15:31:20.869+01:00It is telling that even if there is not a direct c...It is telling that even if there is not a direct competition between food crops and fuel crops for arable land, the two scramble for the world's fertilizers.<br /><br />So it all looks like we can't make the equivalent of 30 billion barrels of crude oil by this route either!<br /><br />Looks to me like relocalisation of societies is inevitable; cutting the amount of fuel needed and producing food locally by non-fertilizer and fuel-input farming methods like permaculture.<br /><br />In the present version, there are too many people, using to much of the world's resources, and what is the answer to that?<br /><br />Chris.Professor Chris Rhodeshttps://www.blogger.com/profile/12060542089215379056noreply@blogger.comtag:blogger.com,1999:blog-19508699.post-43875198886406380912009-07-19T05:14:01.318+01:002009-07-19T05:14:01.318+01:00Yeah! Let's use up the last of the world's...Yeah! Let's use up the last of the world's phosphates so that Joe Sixpack can keep driving his fat ass around in his SUV, while millions are starving worldwide.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-19508699.post-69812067069478369172009-03-26T07:57:00.000+00:002009-03-26T07:57:00.000+00:00Looks great, Judd! Do you have a reference or a li...Looks great, Judd! Do you have a reference or a link you can pint me too,perhaps?<BR/><BR/>I ask out of interest in this important point but also that I am writing a book on the general subject of this blog and I would like to expand this topic into the positive!<BR/><BR/>I agree that recycling is key.<BR/><BR/>Regards,<BR/><BR/>Chris.Professor Chris Rhodeshttps://www.blogger.com/profile/12060542089215379056noreply@blogger.comtag:blogger.com,1999:blog-19508699.post-87401179407681236722009-03-25T23:03:00.000+00:002009-03-25T23:03:00.000+00:00It might be of interest to note that state-of-the-...It might be of interest to note that state-of-the-art material processing technologies now exist that promise the distinct potential to reclaim and reuse a significant amount of the phosphate by-product derived from algae biofuel production as well as reclaiming waste phosphate from numerous other feed sources including manure and waste water plant residue. It is envisioned this reclaimed phosphate will not only be used as crop nutrients but also for the production of a distinctly superior quality, eco-friendly ceramic cement / concrete that replaces the environmental, quality problems associated with Portland cement and / or toxic epoxy binders, while being conveniently adaptable to present Portland cement production and application technologies. This still little known waste stream materials recycling research combined with ceramic cement appears to be a win/ win for all concerned. Regards, JuddJuddhttps://www.blogger.com/profile/03781857324400012185noreply@blogger.comtag:blogger.com,1999:blog-19508699.post-57285413882142475152008-10-07T12:39:00.000+01:002008-10-07T12:39:00.000+01:00What are we talking about in terms of a concentrat...What are we talking about in terms of a concentration of P in phophogypsum? A couple of percent or more than that?<BR/><BR/>However, if that is available in quantity - and it sounds like it is if it's a by-product of the industry - then I think it could be very useful not just for nourishing algae but for all agriculture.<BR/><BR/>Regards,<BR/><BR/>Chris.Professor Chris Rhodeshttps://www.blogger.com/profile/12060542089215379056noreply@blogger.comtag:blogger.com,1999:blog-19508699.post-27986784365944815282008-10-03T12:44:00.000+01:002008-10-03T12:44:00.000+01:00One of phosphate industry burdens is the phophogyp...One of phosphate industry burdens is the phophogypsum obtained as byproduct, which contains some residual Phosphorus in it; with a major part consisting of calcium sulfate. I just wonder if this remaining phosphorus can serve, in a controlled manner, to farm the algae...<BR/><BR/>BrahAnonymousnoreply@blogger.comtag:blogger.com,1999:blog-19508699.post-78535646713811357702008-04-07T07:57:00.000+01:002008-04-07T07:57:00.000+01:00I like the idea of sea-power generally, while ackn...I like the idea of sea-power generally, while acknowledging the enormous amount of engineering that installing it on a large scale (from scratch) will entail. I'll check that link. I wrote an article about SeaGen recently and the prototype "upside-down" windmill type turbine to be placed at the Strangford Lough narrows.As I recall, "Strangford" means "Strong Ford" in Old Norse, as the currents flow quite fast there, above 7 knots.<BR/><BR/>Yes, that's my point - that we have to recycle phosphate from sewage, and indeed drain-off waters. We must do this to keep existing farming going in any case, even without growing algae for fuel, if we are to expect a decline in rock-phosphate from now on (according to the Hubbert analysis). In principle it could be recycled within the algae-growing programme, from year to year, but how exactly to get it from the algal waste, post oil-extraction, would need to be determined.<BR/><BR/>Thanks,<BR/><BR/>Chris.Professor Chris Rhodeshttps://www.blogger.com/profile/12060542089215379056noreply@blogger.comtag:blogger.com,1999:blog-19508699.post-50088134263762188042008-04-07T03:26:00.000+01:002008-04-07T03:26:00.000+01:00That is why we will need to use waste water (sewag...That is why we will need to use waste water (sewage) to grow the algae. This water is very high in Phosphate. Phosphate pollution is the main contributing factor that wild algae blooms are out of control. Algae farming using municipal waste will kill two birds with one stone. One, clean the municipal waste. Two, grow bio-fuels and as a bonus, sequester CO2.Danielhttps://www.blogger.com/profile/11517304384507184576noreply@blogger.comtag:blogger.com,1999:blog-19508699.post-29178307137812196722008-04-06T19:50:00.000+01:002008-04-06T19:50:00.000+01:00http://thefraserdomain.typepad.com/energy/2008/04/...http://thefraserdomain.typepad.com/energy/2008/04/largest-tidal-s.html<BR/><BR/>"..Marine Current Turbines, has successfully completed the first installation phase of the 1.2MW SeaGen Tidal System, previous post, the world’s largest grid-connected tidal stream system, into the fast-flowing waters of Strangford Narrows off the coast of Northern Ireland.."<BR/>Northern Ireland, even Wales and Canada (both in same link above) - this fight ain't over yet!<BR/>GeorgeAnonymousnoreply@blogger.com