Showing 801 - 820 results of 1,792 for search '(( 10 (((peter OR per) decrease) OR (((nn decrease) OR (a decrease)))) ) OR ( 10 i decrease ))*', query time: 0.17s Refine Results
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    Effects of combined calcium hypochlorite and chlorine dioxide on drinking water quality in Qatar and disinfection by-products formation by Mohamed, Elsamoul H.

    Published 2017
    “…The bottles were spiked with Ca(ClO)2 in sequence to give concentration of 0.2, 0.4, 0.6, 0.8, 1.0, and 1.2 mg/L as free chlorine. The mixtures were stored for 7 days at 25°C in the dark then heated to 45°C for two days more, and analyzed daily for physical and chemical parameters. …”
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    Enhancing the production of biogas through anaerobic co-digestion of agricultural waste and chemical pre-treatments by Almomani F.

    Published 2020
    “…The results revealed that the highest cumulative methane production (CMP) of 297.99 NL/kgVS can be generated by co-digestion of ASWs and CD at a ratio of 60:40. Further improvement was achieved via alkalinity treatment with 1.0 g of NaHCO3/gVS leading to decrease in lignin, cellulose, and hemicellulose contents of feedstock by 3.5%, 10.5% and 15.9%, respectively, converting them to soluble fractions and improving the CMP by 11.2–29.7% based on substrate quality. …”
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    Improvement of both lipid and biomass productivities of Qatar Chlorocystis isolate for biodiesel production and food security by Saadaoui, Imen

    Published 2018
    “…QUCCCM14, which was not previously known as a promising strain. Indeed, culturing QUCCCM14 using f/2 medium with 10× NaH2PO4 (0.15 g L−1 NaNO3 and 5.6 mg L−1 NaH2PO4) resulted in an improvement of 3.178 folds the lipid productivity reaching 56.121 mg L−1 day−1 and enhanced the biomass productivity reaching 141.363 mg L−1 day−1, simultaneously. …”
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    Mercury pollution in doha (Qatar) coastal environment by Al-Madfa, H.

    Published 1994
    “…0.60?g g?1 dry weight total Hg. Leachable and methyl Hg averaged 0.10 � 0.11 and 0.02 �0.03 ?…”
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