<![CDATA[ABSTRAK   Kelapa sawit adalah salah satu komoditas perkebunan yang terus berkembang di Indonesia. Pabrik kelapa sawit mengolah buah kelapa sawit menjadi Crude Palm Oil (CPO) dan juga menghasilkan 75% limbah (padat dan cair). Limbah ini menjadi isu lingkungan dan memerlukan penanganan serius. Seiring perkembangan zaman dan meningkatnya kesadaran untuk pelestarian lingkungan, pengolahan limbah menjadi hal yang sangat penting saat ini. Tujuan dari pengolahan limbah selain untuk mencegah kerusakan lingkungan adalah untuk memaksimalkan zero waste. Pemanfaatan limbah menjadi bahan yang bermanfaat dilakukan untuk mengurangi dampak negatif bagi lingkungan dan mewujudkan industri berwawasan lingkungan. Limbah pabrik kelapa sawit berupa limbah padat dan limbah cair. Limbah padat berupa cangkang, serat (fiber) dimanfaatkan kembali menjadi bahan bakar, sedangkan tandan kosong dimanfaatkan menjadi kompos, bahan baku kertas dan pakan ternak. Limbah cair pabrik kelapa sawit akan diolah di IPAL (Instalasi pengolahan air limbah) selanjutnya akan dikembalikan ke lahan (land application). Tindakan pengembalian limbah cair pabrik kelapa sawit ternyata memberikan pengaruh pada perbaikan kualitas tanah, penambahan unsur hara, penganekaragaman mesofauna dan makrofauna tanah, juga berpengaruh terhadap nisbah bunga jantan dan bunga betina. Selain itu limbah cair juga berpotensi menjadi biogas.    ABSTRACT   Palm oil is one of the plantation commodities that continues to grow in Indonesia. Palm oil mills process oil palm fruit into Crude Palm Oil (CPO) and also produce 75% of waste (solid and liquid). This waste is an environmental issue and requires serious handling. Along with the times and increasing awareness for environmental conservation, waste management is very important. The purpose of waste treatment in addition to preventing environmental damage is to maximize zero waste. Utilization of waste into useful materials is carried out to reduce negative impacts on the environment and create an environmentally industry. Utilization of waste into useful materials is carried out to reduce negative impacts on the environment and create an environmentally sound industry. Palm oil mill waste is in the form of solid waste and liquid waste. Solid waste in the form of shells, fiber is reused as fuel, while empty fruit bunches are used as compost, raw material for paper and animal feed. Palm oil mill effluent will be processed at the WWTP (Wastewater Treatment Plant) and will then be returned to the land (land application). The returning palm oil mill effluent turned out to have an effect on improving soil quality, adding nutrients, soil diversifying mesofauna and macrofauna, also affecting the ratio of male and female flowers. In addition, liquid waste also has the potential to become biogas.]]>
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