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Leachate using cambination of chemical and physical method

Leachate using cambination of chemical and physical method / Mohd Yuhyi Mohd Tadza
Ammonia adalah komponen pencemar yang biasa dijumpai di dalam larut lesapan. Ammonia merupakan pencemar yang amat toksik walaupun pada kuantiti yang amat kecil dan boleh memudaratkan hidupan akuatik dan juga merbahaya kepada manusia. Larut lesapan terbentuk apabila air dari hujan melalui sampah sarap di tapak pelupusan dan membawa segala pencemaran ke dasar tapak pelupusan seterusnya menyusup ke bawah tanah lalu mencemarkan reservoir air bawah tanah dan juga alam sekitar. Bagi menjaga dan memelihara alam sekitar larut lesapan ini perlu dirawat secara rapi sebelum dilepaskan ke alam sekitar. Satu kajian untuk merawat bahan pencemar dalam larut lesapan yang diambil dari Tapak Pelupusan Sampah Sanitari Pulau Burung Peringkat III seperti ammonia, COD dan juga fosforus telah dijalankan. Kajian dilakukan dengan menggunakan kombinasi rawatan kimia fizikal bermula dengan pemendakan Magnesium Ammonia Fosfat (MAP), dan diikuti oleh proses pengudaraan dan akhirnya rawatan penjerapan menggunakan zeolit semulajadi. 85-90% ammonia berjaya disingkirkan dalam prarawatan MAP dan seterusnya 60% COD disingkirkan dalam proses pengudaraan dan juga penjerapan zeolite semula jadi. Kehadiran fosforus pula berjaya disingkirkan ke 0 mg/L bagi semua sampel yang dikaji. Selain mendapatkan effluent akhir mengikut standard B, rawatan ini juga menghasilkan enap cemar yang berguna kerana enap cemar yang terhasil memiliki sifat sepertimana yang terdapat dalam baja komersil dan boleh digunakan dalam sektor pertanian. _______________________________________________________________________________________________________ Ammonia is a common contaminant found in landfill leachate. Ammonia is toxic even in small quantity and can affect water life forms and also hazardous to human being. Leachate is a liquid formed when water due to precipitation passes through the waste in landfill and transport pollutant and continue to migrate to the base of the landfill cell and often percolate into the ground thus contaminate groundwater reservoir and the environment. In order to protect and preserve the environment, leachate must be thoroughly treated before discharging it to the environment. A study was conducted on removal of leachate quality parameters such as ammonia, total COD and phosphorus concentration at Pulau Burung Level III Sanitary Landfill by physico-chemical series of treatment starting from Magnesium Ammonium Phosphate (MAP) precipitation, followed by aeration process and finally adsorption using natural zeolite through batch and column test. Approximately 85-90% of ammonia was removed during the pretreatment of MAP alone, and the COD concentrations were reduced up to 60% during the aeration and zeolite adsorption. Phosphorus contents were no longer a threat as all the samples were reduced to 0 mg/L for all sample. Other than obtaining a final effluent of standard B, the treatment byproduct produced by the precipitation can be beneficial as the sludge have the same properties that of commercial fertilizer used for agricultural purposes.
Contributor(s):
Mohd Yuhyi Mohd Tadza - Author
Primary Item Type:
Final Year Project
Identifiers:
Accession Number : 875001978
Language:
English
Subject Keywords:
Ammonia; landfill; leachate
First presented to the public:
4/1/2005
Original Publication Date:
9/25/2020
Previously Published By:
Universiti Sains Malaysia
Place Of Publication:
School of Civil Engineering
Citation:
Extents:
Number of Pages - 86
License Grantor / Date Granted:
  / ( View License )
Date Deposited
2020-09-25 15:42:58.257
Submitter:
Mohd Jasnizam Mohd Salleh

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