🗓Last Tuesday 17th May🗓 we participated in a roundtable organised by DAKE Culto a la Cocina / Paixão pela Cozinha in 𝗖𝗔𝗦𝗔 𝗗𝗘𝗖𝗢𝗥 where one of our partners could talk about our project 𝗟𝗜𝗙𝗘 𝗭𝗘𝗥𝗢 𝗪𝗔𝗦𝗧𝗘 𝗪𝗔𝗧𝗘𝗥 and how some new elements of the kitchen could play an important role in the management of bio-waste at home and in the search for energy efficiency.
𝗟𝗮𝘀𝘁 𝗪𝗲𝗱𝗻𝗲𝘀𝗱𝗮𝘆, 𝟰𝘁𝗵 𝗠𝗮𝘆 a large part of the 
LIFE ZERO WASTE WATER consortium (Aqualia, Canal de Isabel II, Universitat de València, Universidade de Santiago de Compostela, VWMs GmbH – Vienna Water Monitoring Solutions, Simbiente – Environmental Engineering and Management and INCOTEC – Innovación Eficiente) met at 𝘁𝗵𝗲 𝗩𝗮𝗹𝗱𝗲𝗯𝗲𝗯𝗮𝘀 𝗪𝗪𝗧𝗣 (𝗠𝗮𝗱𝗿𝗶𝗱) at the regular 
𝗡𝗘𝗘𝗠𝗢 𝗺𝗲𝗲𝘁𝗶𝗻𝗴 led by Itxaso Mora.
A follow-up of the 𝗱𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁 𝗼𝗳 𝘁𝗵𝗲 𝘁𝗲𝗰𝗵𝗻𝗶𝗰𝗮𝗹 𝗮𝗻𝗱 𝗲𝗰𝗼𝗻𝗼𝗺𝗶𝗰 𝗽𝗮𝗿𝘁 𝗼𝗳 𝘁𝗵𝗲 𝗽𝗿𝗼𝗷𝗲𝗰𝘁 was carried out and later 𝘁𝗵𝗲 𝗱𝗲𝗺𝗼 𝘀𝗶𝘁𝗲 located in the WWTP was visited. Only a few 
electrical details are missing, but…𝘃𝗲𝗿𝘆 𝘀𝗼𝗼𝗻 𝘄𝗲 𝘄𝗶𝗹𝗹 𝗯𝗲 𝗮𝗯𝗹𝗲 𝘁𝗼 𝘀𝗲𝗲 𝗶𝘁 𝗶𝗻 𝗼𝗽𝗲𝗿𝗮𝘁𝗶𝗼𝗻!
We are very happy to finally be able to meet face-to-face and share experiences and knowledge
Many thanks to Itxaso Mora for her good disposition at all times and to all the members of the fantastic team that has been formed as a result of this LIFE project: Jose Ramon Vazquez Padin, Ana Vicente Borreguero, Antonio Mateos Muñoz, Aurora Seco, Josep Ribes, Miguel Roldán Albaladejo, Covadonga P-L G, David Garcia Arrate, Sérgio Almeida, Mª Ángeles Val del Río, Anuska Mosquera Corral, Sergio Martínez Parada, Wolfgang Vogl, Lydia Sáez García, #JesúsSánchezRubal and José Antonio Moraleda Mesa.
Next Thursday 7th April will be held this online webinar entitled “Circular solutions for waste and wastewater management”, from 10:00 a.m. to 1:00 p.m.
They will start with the presentation of these 4 innovation projects co-financed by the LIFE Programme: LIFE BIOGASNET, LIFE Ecodigestión 2, Life Infusion and 👉♻💧LIFE ZERO WASTE WATER💧♻.
You can download the 📕agenda of the event📕 in the comments section💬.
Register for the webinar here:
https://lnkd.in/dNSiHnmr
#waste #wastewater #CircularEconomy #innovation #webinar #lifeproject
The “John” Coliminder system from VWMs GmbH has just been installed in Madrid as part of the innovative LIFE ZERO WASTE WATER project to monitor E.Coli contamination levels.
#LZWWW #WaterQualityMonitoring #OnlineBacteriaMeasurementSystem
A two-stage system (partial nitritation (PN) and anammox processes) was used to remove nitrogen from the dewatering liquor originating from the thermal hydrolysis/anaerobic digestion (THP/AD) of municipal WWTP sludge. Two strategies were tested to start up the PN reactor: 1) maintaining a fixed hydraulic retention time (HRT) and increasing the ammonium loading rate (ALR) by decreasing the feeding dilution ratio and 2) feeding undiluted dewatering liquor and gradually decreasing the HRT. With diluted feeding, the reactor performance had destabilization episodes that were statistically correlated with the application of high specific ammonium (> 0.6 g NH4+-N/(g TSS·d)) and organic (> 0.7 g COD/(g TSS·d)) loading rates. The second strategy allowed stable PN reactor operation while treating ALR up to 4.8 g NH4+-N/(L·d) and demonstrating that dilution of THP/AD effluents is not required. The operating conditions promoted the presence of free nitrous acid levels (> 0.14 mg HNO2-N/L) inside the PN reactor that inhibited the proliferation of nitrite oxidizing bacteria.
Batch activity tests showed that the inhibitory effects of organic compounds present in the THP/AD dewatering liquor on the ammonia oxidizing bacteria activity can be removed in the PN reactor. Thus, aerobic pretreatment would not be necessary when two-stage systems are used. The PN reactor effluent was successfully treated by an anammox reactor.
An economic analysis showed that using two-stage systems is advantageous for treating THP/AD dewatering liquor. The implementation of an aerobic pre-treatment unit is recommended for WWTPs capacities higher than 5·105 inhabitants equivalent when one-stage systems are used.
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The University of Valencia has participated in the “Next Generation EU” conference, where it has been able to present the benefits of the LIFE ZERO WASTE WATER project.
The application of partial nitritation and anammox processes (PN/A) to remove nitrogen can improve the energy efficiency of wastewater treatment plants (WWTPs) as well as diminish their operational costs. However, there are still several limitations that are preventing the widespread application of PN/A processes in urban WWTPs such as: (a) the loss of performance stability of the PN/A units operated at the sludge line, when the sludge is thermally pretreated to increase biogas production; (b) the proliferation of nitrite-oxidizing bacteria (NOB) in the mainstream; and (c) the maintenance of a suitable effluent quality in the mainstream. In this work, different operational strategies to overcome these limitations were modelled and analyzed. In WWTPs whose sludge is thermically hydrolyzed, the implementation of an anerobic treatment before the PN/A unit is the best alternative, from an economic point of view, to maintain the stable performance of this unit. In order to apply the PN/A process in the mainstream, the growth of ammonia-oxidizing bacteria (AOB) should be promoted in the sludge line by supplying extra sludge to the anaerobic digesters. The AOB generated would be applied to the water line to partially oxidize ammonia, and the anammox process would then be carried out. Excess nitrate generated by anammox bacteria and/or NOB can be removed by recycling a fraction of the WWTP effluent to the biological reactor to promote its denitrification.
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