Comprehensive treatment method of vinegar residues
A technology of comprehensive treatment and vinegar residues, applied in fertilizer mixtures, fertilizers made from biological waste, applications, etc., can solve the problems of small treatment capacity, waste of resources, long treatment time, etc. short time effect
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[0017] Example 1
[0018] a. Pretreating the collected wet vinegar lees: 875 g of vinegar lees, add 2187.5 g of hydrochloric acid solution with a mass concentration of 1.0% at a solid-to-liquid ratio of 2:5, and let stand for 24 hours at room temperature.
[0019] b. Enrich the hydrogen-producing bacteria in cow dung: add 500 ml of NaOH solution with a concentration of 0.5 mol / L to 300 g of cow dung according to a solid-to-liquid ratio of 3:5, the treatment time is 1.5 h, and the temperature is 100 °C.
[0020] c. Add the pretreated vinegar grains to the anaerobic fermentation device, inoculate 750g of enriched hydrogen-producing bacteria, dilute to 5L with brewery sewage (or tap water), and adjust pH6.5 with hydrochloric acid and sodium hydroxide solution About, 25 ℃ fermentation, stirring. Under this condition, the cumulative hydrogen production of vinegar lees fermentation for 48h was 39.12ml / gTS.
[0021] d. After centrifugation of the fermentation broth after hydrogen p...
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[0023] Example 2
[0024] a. Pretreatment of the collected wet vinegar lees: 500 g of vinegar lees, add 1250 g of hydrochloric acid with a mass concentration of 0.5% at a solid-to-liquid ratio of 2:5, and let stand at room temperature for 24 hours.
[0025] b. Enrich the hydrogen-producing bacteria in cow dung: add 1000 ml of NaOH solution with a concentration of 0.3 mol / L to 600 g of cow dung according to a solid-to-liquid ratio of 3:5, the treatment time is 2 hours, and the temperature is 100 °C.
[0026] c. Add the pretreated vinegar waste into the anaerobic fermentation device, inoculate 500g of enriched hydrogen-producing bacteria, dilute to 5L with brewery sewage (or tap water), and adjust pH6.5 with hydrochloric acid and sodium hydroxide solution left and right, ferment at 55°C, and stir. Under this condition, the cumulative hydrogen production of vinegar grains fermentation for 48h was 43.41ml / gTS. .
[0027] d. After centrifugation of the fermentation broth after h...
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[0029] Example 3
[0030] a. Pretreatment of the collected wet vinegar lees: 1250 g of vinegar lees, add 3215 g of hydrochloric acid with a mass concentration of 3% at a solid-to-liquid ratio of 2:5, and let stand at room temperature for 24 hours.
[0031] b. Enrich the hydrogen-producing bacteria in cow dung: 300 g of cow dung is added with 500 ml of NaOH solution with a concentration of 1.0 mol / L according to a solid-to-liquid ratio of 3:5, the treatment time is 1 h, and the temperature is 100 °C.
[0032] c. Add the pretreated vinegar waste into the anaerobic fermentation device, inoculate 1000g of enriched hydrogen-producing bacteria, dilute to 5L with brewery sewage (or tap water), and adjust pH6.5 with hydrochloric acid and sodium hydroxide solution left and right, ferment at 55°C, and stir. Under this condition, the cumulative hydrogen production of vinegar lees fermentation for 48h was 34.62ml / gTS. .
[0033] d. After centrifugation of the fermentation broth after h...
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