6533b86dfe1ef96bd12ca180

RESEARCH PRODUCT

Reduction of Nitrates in Waste Water through the Valorization of Rice Straw: LIFE LIBERNITRATE Project

José David BadiaPlàcid MadramanyJosé Domingo MartínezCarmem T. PrimazElisabetta AratoCristina MolinerBarbara BosioFrank HiddinkFrancesc HernandezJosé CastroFrancisco Javier SanchisR. Teruel-juanesPilar Campí Ns-falcóAmparo Ribes-greusLorenzo Sanjuan-navarroJosé MoránCarmen Molins-legua

subject

PollutionNitratsMonitoring020209 energymedia_common.quotation_subjectGeography Planning and DevelopmentTJ807-83002 engineering and technology010501 environmental sciencesManagement Monitoring Policy and LawTD194-19501 natural sciencesnitrate removalRenewable energy sourcesAigua Depuracióenergy and material recoverychemistry.chemical_compoundNitrate0202 electrical engineering electronic engineering information engineeringGE1-350Renewable Energy0105 earth and related environmental sciencesmedia_commonPlanning and DevelopmentPollutantGeographySustainability and the EnvironmentPolicy and LawEnvironmental effects of industries and plantsWaste managementRenewable Energy Sustainability and the Environmentwater treatmentStrawManureManagementEnvironmental scienceschemistryWastewaterrice strawEnvironmental sciencewaste managementEnergy and material recovery; Nitrate removal; Rice straw; Waste management; Water treatment; Geography Planning and Development; Renewable Energy Sustainability and the Environment; Management Monitoring Policy and LawGroundwaterWaste disposal

description

An improved and more sustainable waste management system is required for successful development of technologies based on renewable sources. Rice straw is submitted to controlled combustion reactions and the produced ashes are chemically treated to produce silica. After a chemical activation step, the activated silica shows potential as an adsorbent agent and will be used to remove the excess of nitrates in groundwater and wells in the area of Alginet (Valencia, Spain), selected as a vulnerable zone within the Nitrates Directive. The demonstration activity aims to have a local impact on municipalities of 200 inhabitants or fewer, decreasing from current nitrate concentrations close to 50 mg/L, to a target of 25 mg/L. In a successive step, the methodology will be transferred to other municipalities with similar nitrate problems (Piemonte, Italy) and replicated to remove different pollutants such as manure (the Netherlands) and waste waters from the textile industry (Italy).

https://doi.org/10.3390/su10093007