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可循環降解顆粒化調理劑及在污泥堆肥中的應用

可循環降解顆粒化調理劑及在污泥堆肥中的應用

網址:http://yxdalu.com 手機頁面二維碼 2022-06-10 17:05:37    

一種可循環降解顆粒化調理劑解決了傳統有機調理劑用量大、難以循環利用,增加污泥堆肥成本,和有機調理劑堆肥后期緩慢降解,延長堆肥周期的問題,同時解決了無機調理劑殘留于堆肥,降低成品質量的問題。
A kind of recyclable degradable granulated conditioner solves the problems of large amount of traditional organic conditioner, difficult recycling, increasing the cost of sludge composting, slow degradation of organic conditioner in the later stage of composting, and prolonging the composting cycle. At the same time, it solves the problem of inorganic conditioner remaining in the compost and reducing the quality of finished products.
本發明可循環降解顆粒化調理劑是粒徑為0.5~10cm的木質均勻體。應用:(1)將污泥與調理劑混合,得混合物料;(2)混合物料高溫發酵;(3)發酵后出料,然后篩分出調理劑,篩分率98%以上。本發明調理劑空間結構穩定、流動性好、易篩分、能循環使用,吸水性好、可調節水分,微生物附著性好、可循環接種,殘留不影響成品質量。本發明具有很高的推廣應用價值。
The recyclable degradable granulated conditioner is a wood homogenate with a particle size of 0.5 ~ 10cm. Application: (1) mixing sludge and conditioner to obtain mixed materials; (2) High temperature fermentation of mixed materials; (3) After fermentation, the material is discharged, and then the conditioner is screened out, with a screening rate of more than 98%. The conditioner has stable spatial structure, good fluidity, easy screening, can be recycled, has good water absorption, can adjust water content, has good microbial adhesion, can be recycled for inoculation, and the residue does not affect the quality of finished products. The invention has high popularization and application value.
可循環降解顆粒化調理劑在污泥堆肥中的應用步驟為:(1)按質量比1∶(0.35~1.35)將污泥與調理劑混合,得混合物料,混合物料含水率為55~65%;(2)混合物料放入發酵設施內高溫好氧發酵,通風速率為0.05~6m3/(min·m3),維持混合物料溫度在55℃以上少5天;(3)發酵9~20天后出料,然后經滾筒篩篩分出調理劑,篩分率在98%以上,即完成調理劑在污泥堆肥中的應用。其中步驟(1)中污泥的含水率為75~85%,有機質含量為40~85%。
The application steps of recycled degradable granulated conditioner in sludge composting are as follows: (1) the sludge and conditioner are mixed according to the mass ratio of 1:0.35 ~ 1.35 to obtain a mixed material with a moisture content of 55 ~ 65%; (2) The mixed materials are put into the fermentation facilities for high-temperature aerobic fermentation, the ventilation rate is 0.05 ~ 6m3/ (min · m3), and the temperature of the mixed materials is maintained above 55 ℃ for at least 5 days; (3) After 9 ~ 20 days of fermentation, the material is discharged, and then the conditioner is screened out by roller screen. The screening rate is more than 98%, that is, the application of conditioner in sludge composting is completed. The water content of sludge in step (1) is 75-85%, and the organic matter content is 40-85%.、
可降解顆粒
可降解顆粒化調理劑可以單獨應用于污泥堆肥中,相比傳統調理劑,流動性好,易篩分,高溫發酵出料后調理劑能篩分出98%以上,直接或經風干后循環使用,降低污泥堆肥的運行成本。由于本發明調理劑為天然有機材料制成,微生物附著性好,循環使用起到很好的接種作用,使發酵時間由傳統高溫堆肥工藝的一個月縮短9~20天,且明顯提高了堆體的升溫速度,發酵結束時升溫可達28℃,。
Degradable granulated conditioner can be applied to sludge compost alone. Compared with traditional conditioner, it has good fluidity and is easy to screen. After high-temperature fermentation and discharge, the conditioner can screen more than 98%. It can be directly or recycled after air drying to reduce the operation cost of sludge compost. As the conditioner of the invention is made of natural organic materials, the microorganism has good adhesion, and the recycling plays a good role in inoculation, so that the fermentation time is shortened from one month of the traditional high-temperature composting process to 9 ~ 20 days, and the heating rate of the pile is significantly increased. The heating up can reach 28 ℃ at the end of the fermentation day,.
而傳統高溫堆肥工藝的升溫速度一般僅為6~15℃/天。本發明中調理劑為透氣性好的有機物,在堆肥中降解速度緩慢,空間結構穩定,提高了空氣在堆體內的傳質效率,同時本發明中調理劑有良好的吸水性,可降低污泥的含水率,提高物料整體的透氣性能,為微生物創造了適宜的生長繁殖條件。
However, the heating rate of traditional high-temperature composting process is generally only 6 ~ 15 ℃ / day. The conditioner in the invention is an organic substance with good air permeability, which is degraded slowly in the compost, has a stable spatial structure, and improves the mass transfer efficiency of air in the reactor. At the same time, the conditioner in the invention has good water absorption, which can reduce the water content of sludge, improve the overall air permeability of materials, and create suitable growth and reproduction conditions for microorganisms.
本發明調理劑材質為木材,可降解,即使篩分時有殘留,也不會降低成品有機質含量。本發明調理劑在污泥堆肥中應用,所得成品具有有機質含量高、氮磷鉀養分含量高、肥效作用時間長等優點,是一種肥效好佳的有機緩釋肥和土壤改良劑。
The conditioner of the invention is made of wood and can be degraded. Even if there is residue during screening, the organic matter content of the finished product will not be reduced. The conditioner is applied in sludge composting, and the finished product has the advantages of high organic matter content, high nitrogen, phosphorus and potassium nutrient content, long fertilizer effect time, etc., and is an organic slow-release fertilizer and soil conditioner with good fertilizer effect.
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