Biogas engineering In northern areas, the biogas digester is usually more than 35T, which is the best. It can not improve the soil, fruit tree root fertilizer, leaf surface spraying fertilizer, and slope semi open shed building. 10~12 pig houses will be built in a separate row, with a pig inventory of 80~100 pigs and an annual pig output of 150~200 pigs. For a mountain site with an area of more than 6.67hm2100mu, the dynamic capacity can reach 10T at lower power, and the gas production per cubic meter of liquid material is not less than 0.2m3. According to the scale of the piggery design, determine the volume of the pool, and store
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