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  1. Biogas Cleaning and Upgrading Technologies

    https://ohioline.osu.edu/factsheet/AEX-653.1-14

    problems. High concentration of O₂ is explosive. H₂S is corrosive to steel in reactors and engines when ... than 3%, 112 mg/m³ and 4 ppm, respectively [3]. Most bio-CNG practices require purified biogas to have ... ppm, 4 ppm and 1 ppm of CO₂, H₂S and H₂O, respectively, to prevent dry ice formation and corrosion [4]. ...

  2. Phytotechnology and Phytoremediation

    https://fabe.osu.edu/courses/fabeng-5520

    treating polluted soil and water. Traditional methods as well as new trends and current research in ...

  3. Composting at Home

    https://ohioline.osu.edu/factsheet/hyg-1189-99

    thatch (an unhealthy, organic debris-layer between the soil and live grass). Finally, average mowing time ... chipped brush, and plant cuttings—improves soil, protects the environment, and saves money. Homeowners ... as leaves and food scraps, into a valuable fertilizer that can enrich soil and plants. Anything that ...

  4. Soil Acidity and Liming for Agronomic Production

    https://ohioline.osu.edu/factsheet/AGF-505-07

    is considered adequate if soil test levels are greater than 50 ppm (100 lb). Hi-cal (calcitic) lime ... ($50 hauling charge/60 acres). Summary In summary, make sure you obtain a soil test, determine if lime ... neutralization to raise the soil pH. High concentrations of hydrogen in soil solution (low soil pH) may cause the ...

  5. Year End Achievement Awards Presentation

    https://ohio4h.org/events/year-end-achievement-awards-presentation

    above if your 4Her plans to attend.  Recognition Levels: Gold- Competed in all 8 State Events ...

  6. Two Day Income Tax School, Chillicothe

    https://farmoffice.osu.edu/events/two-day-income-tax-school-chillicothe-0

    state tax returns. They are considered to be intermediate level classes. Instruction will focus on ... Tax Handbook at a substantial discount, and 50% off of our ethics webinar. Registration for the 2021 ...

  7. Four-Part Income Tax School Webinar

    https://farmoffice.osu.edu/events/four-part-income-tax-school-webinar

    state tax returns. They are considered to be intermediate level classes. Instruction will focus on ... Tax Handbook at a substantial discount, and 50% off of our ethics webinar. Registration for the 2021 ...

  8. Two Day Income Tax School, Hartville

    https://farmoffice.osu.edu/events/two-day-income-tax-school-hartville

    state tax returns. They are considered to be intermediate level classes. Instruction will focus on ... Tax Handbook at a substantial discount, and 50% off of our ethics webinar. Registration for the 2021 ...

  9. Two Day Income Tax School, Columbus

    https://farmoffice.osu.edu/events/two-day-income-tax-school-columbus-0

    state tax returns. They are considered to be intermediate level classes. Instruction will focus on ... Tax Handbook at a substantial discount, and 50% off of our ethics webinar. Registration for the 2021 ...

  10. Two Day Income Tax School, Zanesville

    https://farmoffice.osu.edu/events/two-day-income-tax-school-zanesville-0

    state tax returns. They are considered to be intermediate level classes. Instruction will focus on ... Tax Handbook at a substantial discount, and 50% off of our ethics webinar. Registration for the 2021 ...

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