0000000000718805

AUTHOR

Ivar Zekker

showing 2 related works from this author

Valorization of Marine Waste: Use of Industrial By-Products and Beach Wrack Towards the Production of High Added-Value Products

2021

Biomass is defined as organic matter from living organisms represented in all kingdoms. It is recognized to be an excellent source of proteins, polysaccharides and lipids and, as such, embodies a tailored feedstock for new products and processes to apply in green industries. The industrial processes focused on the valorization of terrestrial biomass are well established, but marine sources still represent an untapped resource. Oceans and seas occupy over 70% of the Earth’s surface and are used intensively in worldwide economies through the fishery industry, as logistical routes, for mining ores and exploitation of fossil fuels, among others. All these activities produce waste. The other sou…

Resource (biology)Sciencemarine biomassBiomassOcean Engineering02 engineering and technologyQH1-199.5010501 environmental sciencesAquatic ScienceRaw materialOceanographybeach wrack01 natural sciencesWrack12. Responsible consumptionIndustrial Biotechnologyblue biotechnologyIndustriell bioteknikEnvironmental protectionmarine wastebeach wrack; blue biotechnology; circular economy; marine biomass; marine biopolymers; marine industrial by-products; marine waste; waste valorizationOrganic matterMarine ecosystem14. Life underwatermarine waste ; marine industrial by-products ; marine biopolymers ; marine biomass ; waste valorization ; circular economy ; blue biotechnology ; beach wrack0105 earth and related environmental sciencesWater Science and Technology2. Zero hungerchemistry.chemical_classificationGlobal and Planetary Changebusiness.industryCircular economyQFossil fuelcircular economyGeneral. Including nature conservation geographical distributionmarine biopolymersmarine industrial by-products021001 nanoscience & nanotechnology6. Clean waterwaste valorizationchemistry13. Climate actionEnvironmental science0210 nano-technologybusiness
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Levels and Potential Health Hazards of Chlorinated Pesticidesin Surface Water Samples of Charsadda Area of Pakistan Using SPME-GC-ECD Technique

2021

In the present study, we determined the levels of chlorinated pesticide residues in surface water samples collected from the Charsadda district (KPK, Pakistan). SPME-GC-ECD with COMBI PAL CTC autosampler was used for extraction and analysis of 20 organochlorine pesticides in the collected water samples. For maximum efficiency of the SPME procedure, several parameters were studied, including the extraction and desorption time of the fiber, solution pH, agitation of samples, and stirring speed, etc. This method showed good liner response, with R2 values in the range of 0.9887 to 0.9999 for all pesticides. This method also provided good percent recoveries at 1 µg L−1 (87.5 to 106.0%) and at 2 …

water samplesHeptachlorHeptachlor EpoxideGeography Planning and DevelopmentSPMEChlordaneAquatic Sciencecancer riskBiochemistryDieldrinchemistry.chemical_compoundAldrinTD201-500Water Science and Technologychlorinated pesticidesWater supply for domestic and industrial purposesGeovetenskap och miljövetenskapHydraulic engineeringPesticidechemistryEnvironmental chemistryEndrinGC-ECDEarth and Related Environmental SciencesTC1-978Surface water
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