PENGURUSAN AIR LARUT RESAP: PENDEKATAN BIOLOGI (LEACHATE MANAGEMENT: BIOLOGICAL APPROACH)
Abstract
Abstrak
Modenisasi banyak menyumbang kepada peningkatan sampah-sarap secara mendadak dan sampah-sarap akan diuruskan melalui sistem kambus tanah. Penggunaan sistem kambus tanah akan mengakibatkan penjanaan air larut resap yang bakal menimbulkan masalah persekitaran dan kesihatan. Air larut resap ialah cecair yang terhasil daripada kegiatan degradasi sisa dan penyusupan air hujan. Oleh sebab air larut resap mengandungi bahan-bahan pencemar yang toksik, air larut resap harus dikumpul dan diolah secara sistematik. Dalam kajian ini, sampel air larut resap dari salah satu tapak pelupusan di Malaysia telah dikumpulkan dan digunakan untuk pengolahan melalui pendekatan biologi. Pengolahan air larut resap akan dijalankan dengan menggunakan mikroorganisma yang berasal dari sampel air dan mikroorganisma eksotik. Kecekapan penglibatan mikroorganisma dalam usaha pengolahan air larut resap dapat ditentukan melalui analisis indikator seperti kepekatan nitrogen ammonia sebelum dan selepas proses pengolahan. Di samping itu, beberapa teknologi yang sesuai digunakan untuk pengolahan air larut resap atau penambahbaikan kecekapan proses pengolahan juga dikenalkan. Kesimpulannya, usaha mengeksplorasi teknologi pengolahan air larut resap harus dijalankan secara segera dan berkekalan agar masalah yang diundangkan oleh air larut resap dapat diatasi secara sempurna.
Kata kunci: Air larut resap, pendekatan biologi, teknologi pengolahan
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Abstract
Modernisation has greatly contributed to increase of solid wastes being produced and solid wastes will be managed via landfilling system. Use of landfill will lead to production of leachate wastewater which will attribute to environmental and health problem. Leachate is liquid produced due to waste decomposition and rainwater percolation. Due to the presence of toxic pollutants, leachate wastewater needs to be collected and treated systematically. In this study, leachate wastewater sample was collected from one of the landfill in Malaysia and used for biological treatment. Treatment of leachate wastewater was treated by using indigenous and exogenous microorganisms. The efficiency of microorganisms used for leachate treatment was determined through indicators analysis such as concentration of ammonia nitrogen present in the leachate wastewater before and after treatment session. Besides that, several technologies that suitable for leachate treatment or leachate treatment efficiency improvement were introduced. As a conclusion, effort to explore more leachate wastewater treatment needs to be carried out immediately and long lasting so that all the negative impacts contributed by leachate wastewater can be solved effectively.
Keywords: Leachate wastewater, biological treatment, technology
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