黑膜沼氣池是現(xiàn)在很多養(yǎng)殖場(chǎng)沼氣制取裝置中的一個(gè)重要部分，目前在全國(guó)已有很多**工程，該技術(shù)是2003年引入中國(guó)，得到很多養(yǎng)殖場(chǎng)業(yè)主的高度評(píng)價(jià)，本工藝技術(shù)產(chǎn)氣量大，花錢(qián)少，能有效的降解污水中COD與BOD的濃度，沼氣池首**行開(kāi)挖建池，底部采用防滲膜鋪設(shè)，防滲膜具有很好的防滲效果，不會(huì)污染地下水，**部采用黑膜將沼氣池覆蓋進(jìn)行全密封，明顯減少氣味，保護(hù)周?chē)h(huán)境。沼氣可轉(zhuǎn)化為電能，給豬舍保暖，養(yǎng)殖場(chǎng)照明、做飯等生活用電，做肥料種蔬菜瓜果，沼渣可直接排到魚(yú)塘做飼料。

Black film biogas digesters are an important part of many biogas production facilities in aquaculture farms. There are already many * * projects across the country. This technology was introduced to China in 2003 and has been highly praised by many farm owners. This process technology has a large gas production capacity, low cost, and can effectively degrade the concentration of COD and BOD in sewage. The first row of the biogas digester is excavated and built, and the bottom is covered with anti-seepage film, which has good anti-seepage effect and will not pollute groundwater. The * * part is covered with black film for full sealing, significantly reducing odor and protecting the surrounding environment. Biogas can be converted into electricity to keep pig houses warm, provide lighting and cooking electricity for livestock farms, and be used as fertilizer for growing vegetables and fruits. Biogas residue can be directly discharged into fish ponds as feed.

黑膜沼氣池具備建設(shè)成本低（每立方設(shè)備造價(jià)約40-90元），施工方便，建設(shè)周期大概30天完工，糞污在密封的沼氣池內(nèi)停留時(shí)間長(zhǎng)，使糞污中的**物厭氧得較徹底，消化較充分，出來(lái)的水基本能達(dá)標(biāo)，池底設(shè)有自動(dòng)排渣裝置，池內(nèi)污泥量少，維護(hù)管理方便，可減少人力物力，沼氣容積大，產(chǎn)氣量高，能進(jìn)的糞污比常規(guī)的沼氣池多一二十倍，氣柜只能儲(chǔ)存200立方米的沼氣，而黑膜沼氣池則能存儲(chǔ)兩三千立方米的沼氣，還能節(jié)省污水處理費(fèi)和肥料費(fèi)用等，同時(shí)，黑膜沼氣池還能很好地解決混凝土沼氣工程因溫度變化而產(chǎn)生收縮、脹裂引起的滲水、漏水、漏氣問(wèn)題以及地面式鋼板沼氣工程的鋼板易腐蝕、管道易堵塞、設(shè)備易損壞、運(yùn)行費(fèi)用高等問(wèn)題。

The black film biogas digester has low construction costs (about 40-90 yuan per cubic meter of equipment), easy construction, and a construction period of about 30 days. The manure stays in the sealed biogas digester for a long time, making the * * substances in the manure more thoroughly anaerobically digested and the water discharged basically meet the standards. The bottom of the digester is equipped with an automatic slag discharge device, which reduces the amount of sludge in the digester, makes maintenance and management convenient, and can reduce manpower and material resources. The biogas volume is large, the gas production is high, and the amount of manure that can enter is about ten to twenty times more than that of conventional biogas digesters. The gas holder can only store 200 cubic meters of biogas, while the black film biogas digester can store two to three thousand cubic meters of biogas, and can also save sewage treatment and fertilizer costs. At the same time, the black film biogas digester The pool can also effectively solve the problems of water seepage and leakage caused by shrinkage and expansion cracks in concrete biogas engineering due to temperature changes The problem of gas leakage and the corrosion of steel plates, blockage of pipelines, damage to equipment, and high operating costs in ground-based steel plate biogas projects.