Pelupusan air larut lesap dalam tanah mengandungi sejumlah besar bahan cemar organik dan tidak organik yang berbahaya dan membawa kesan yang luar biasa ke arah persekitaran terutamanya di permukaan air, air bawah tanah dan udara. Pelupusan air larut lesap perlu dirawat untuk mengelakkan dari pencemaran komposisi berbahaya yang lahir dari proses larut lesap. Dalam kajian ini, kaedah rawatan yang telah dibincangkan adalah proses fizikal kimia penjerapan. Oleh itu, daun kelapa sawit digunakan sebagai prekursor untuk menghasilkan rawatan penjerapan dalam penyingkiran COD, warna dan logam berat dari air larut lesap. Kadar keberkesanan penjerapan telah dikaji berdasarkan kesan nisbah, suhu dan masa pengkarbonan yang diresapi dengan menggunakan H3PO4. Untuk menilai kadar penjerapan, ia dapat diperoleh daripada ujian nombor iodin di mana nisbah yang dilaraskan optimum ialah 1: 3 pada 400oC selama 1 jam. Dos dan masa kontak diperiksa di mana kadar dos optimumnya adalah 0.6g pada 30 minit. Nanocomposite karbon diaktifkan dengan tembaga oksida telah dikaji dalam kajian ini untuk menentukan prestasi dalam kadar penjerapan. Kedua-dua Langmuir dan Freundlich Isotherms digunakan untuk menggambarkan penjerapan COD, warna dan logam berat.
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Landfill leachate contains large amount of organic and inorganic contaminants which is it hazardous and bring a tremendous impact towards the environment in surface water, groundwater and air. The landfill leachate needed to be treated to avoid from contamination of these hazardous composition born from the leaching process. In this studies, the treatment method that have been discussed was chemical physical process of adsorption. Thus, oil palm frond was used as precursor to produce the adsorption treatment in COD, colour and heavy metals removal from landfill leachate. The effectiveness of adsorption rate was studied based on the effects of impregnated ratio, temperature and time of carbonization by using H3PO4. In order to examine the adsorption rate was gained from iodine number test where the optimum impregnated ratio was 1:3 at 400oC for 1 hour respectively. The dosage and contact time was examined where the optimum dosage rate is 0.6g at 30 minutes. The activated carbon nanocomposite with Copper oxide was studied in this research to determine the performance in adsorption rate. Both Langmuir and Freundlich Isotherms could be used to describe the adsorption of COD, colour and heavy metals.
Treatment of landfill leachate by palm oil waste carbon copper-oxide nano composite / Siti Nurwajihah Abu Bakar