OPTIMIZATION CONDITIONS AND APPLICATION OF MOVING BED BIOFILM REACTOR FOR MATURE LANDFILL LEACHATE TREATMENT

Abstract An aerobic moving bed biofilm reactor (MBBR) was applied to treat landfill leachate generated from a domestic waste incineration plant. Pollutant removal efficiency of this reactor under stable operating condition was studied. The biomass, bacteria species, and microbial metabolism in this reactor were investigated. These results showed that the average removal efficiency of chemical oxygen demand (COD) and ammonia nitrogen in the aerobic MBBR achieved 64% and 97% in the optimum conditions, respectively. The three-dimensional fluorescence spectrum revealed that the content of soluble microbial byproducts from extracellular polymeric substances extraction in suspended sludge was much higher than that on biofilm, and the types of pollutants were various in different regions of the reactor. It also indicated that the MBBR system had a stable, rich and regular microorganism community, including large amounts of nitrifying bacteria and denitrifying bacteria. Scanning electron microscopy suggested that biofilm attached to the packing provided a good anoxic–aerobic micro environment system to achieve a high metabolic activity, which favored COD and ammonia removal.

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Pengaruh Aplikasi Moving Bed Biofilm Reactor (MBBR) Untuk Pengolahan Limbah Air Lindi (Leachate) Secara Aerobik Terhadap Kualitas Air

Jurnal Ilmiah Mahasiswa Pertanian ◽

10.17969/jimfp.v4i3.11544 ◽

2019 ◽

Vol 4 (3) ◽

pp. 125-134

Author(s):

Sischa Anisa ◽

Darwin Darwin ◽

Muhammad Yasar

Keyword(s):

Continuous System ◽

Biofilm Reactor ◽

Moving Bed Biofilm Reactor ◽

Leachate Treatment ◽

Moving Bed ◽

Biofilm Reactors ◽

Surrounding Environment ◽

Biodegradation Process ◽

Growth System ◽

Content Processing

Abstrak. Penelitian ini bertujuan untuk mengetahui efektivitas pengolahan air lindi (leachate) dengan proses aerob menggunakan aplikasi reaktor biofilm dan reaktor tanpa biofilm untuk mengurangi bahan pencemar pada lindi. Penimbunan sampah yang dilakukan setiap harinya di tempat pembuangan akhir (TPA) dapat menimbulkan masalah bagi lingkungan sekitarnya, dengan terbentuknya air lindi (leachate). Lindi yang terinfiltrasi akan mencemari air tanah. Pengolahan leachate sampah dilakukan secara fisika, kimia atau biologi tergantung pada karakteristik lindi. Kurangnya kandungan oksigen terlarut akan menghambat proses biodegradasi sehingga kandungan zat organik lindi akan meningkatmaka dilakukan uji coba pengolahan air lindi dengan teknologi aerasi menggunakan biofilm atau sistem pertumbuhan melekat MBBR untuk menurunkan kandungan bahan pencemar. Pengolahan dilakukan selama 10 hari olah menggunakan sistem kontinu, membandingkan reaktor tanpa biofilm (kontrol), reaktor MBBR menggunakan media k1 (kaldness) sebagai filter dan tempat melekatnya mikroorganisme serta reaktor MBBR menggunakan arang tempurung kelapa sebagai absorban. Volume yang digunakan 5 liter lindi untuk setiap reaktor. Dari pengolahan yang dilakukan diperoleh penurunan BOD adalah 64%, 73%, dan 75%; COD adalah mengalami kenaikan 8%, 14,3%, dan 35,8%; TKN adalah 44,44%, 56,73%, dan 75,7%, Fe adalah 9,041mg/l (influent); 8,033 mg/l; 9,0543 mg/l dan 5,053 mg/l.The Effect of Application Moving Bed Biofilm Reactor (MBBR) To Leachate Wastewater Treatment Aerobically To Water QualityAbstract. This study aims to determine the effectiveness of leachate with aerobic processes using biofilm reactors and reactors without biofilms to reduce pollutants in leachate. The landfill that is carried out every day in the landfill (TPA) can cause problems for the surrounding environment, with the formation of leachate (leachate). Infiltrated leachate will contaminate ground water. Processing of waste leachate is done in physics, chemistry or biology depending on leachate characteristics. Lack of dissolved oxygen will inhibit the biodegradation process so that the content of leachate organic matter will increase, then a trial of leachate treatment with aeration technology is carried out using a biofilm or MBBR's inherent growth system to reduce the pollutant content. Processing was carried out for 10 days using a continuous system, comparing the reactor without biofilm (control), the MBBR reactor using k1 (kaldness) as a filter and the attachment of microorganisms and the MBBR reactor using coconut shell charcoal as absorbent. The volume used is 5 liters of leachate for each reactor. From the processing carried out obtained a decrease in BOD is 64%, 73%, and 75%; COD has increase by8%, 14.3%, and 35.8%; TKN is 44.44%, 56.73%, and 75.7%, Fe is 9.041mg/l (influent); 8.033 mg / l; 9.0543 mg /l and 5.053 mg /l.

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