Kajian Pemanfaatan Lumpur Alum Sebagai Media Constructed Wetlands Untuk Menurunkan Nutrien Pada Efluen IPAL Komunal

Gloria, Yemima (2022) Kajian Pemanfaatan Lumpur Alum Sebagai Media Constructed Wetlands Untuk Menurunkan Nutrien Pada Efluen IPAL Komunal. Undergraduate thesis, Institut Teknologi Sepuluh November.

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Abstract

IPAL komunal umumnya menggunakan Anaerobic Baffled Reactor dengan pertimbangan biaya operasi yang murah dan mudah dalam operasi pemeliharaannya. Akan tetapi pada beberapa penelitian masih ditemukan konsentrasi nutrien pada efluen IPAL Anaerobic Baffled Reactor yang belum memenuhi baku mutu, seperti amonia dan fosfat. Pada proses pengolahan air minum biasanya dibutuhkan penambahan koagulan Alumunium Sulfat yang akan menghasilkan lumpur yang mengandung senyawa alum. Lumpur alum ini seringkali dibuang begitu saja dengan hanya melewati sedikit proses pengolahan limbah atau bahkan tidak sama sekali, yang menimbulkan dampak negatif bagi lingkungan dan juga merusak estetika. Penelitian mengemukakan bahwa lumpur alum dari IPAM yang telah dikeringkan memiliki potensi untuk dimanfaatkan sebagai media Construction Wetlands dan memiliki potensi untuk menurunkan kadar nutrien. Untuk membuktikan hal tersebut maka dilakukan studi literatur untuk mencari metode pengeringan lumpur alum sebelum dijadikan media Construction Wetlands, berbagai desain Constructed Wetlands dengan media lumpur alum terdahulu, serta mekanisme penyisihan nutrien didalamnya. Hasil studi ini memperlihatkan bahwa lumpur alum biasanya dikeringkan secara alami kemudian dikeringkan kembali dengan oven sebelum dijadikan media alternatif pada Constructed Wetlands. Ada berbagai macam mekanisme dalam penyisihan nutrien pada Constructed Wetlands dengan media lumpur alum, namun mekanisme yang berperan besar dalam penyisihan fosfor ialah adsorpsi oleh lumpur alum melalui pertukaran ligan dan mekanisme yang berperan besar dalam penyisihan amonia ialah nitrifikasi-denitrifikasi. Ditemukan bahwa Constructed Wetlands satu tahap memiliki efisiensi penyisihan yang lebih tinggi dibandingkan Constructed Wetlands bertahap. =================================================================================================== Communal WWTPs generally use Anaerobic Baffled Reactor by considering the low operational costs and the easy maintenance. However, in several studies, the nutrient that found in the Anaerobic Baffled Reactor WWTP effluent have not meet the quality standards, such as the ammonia and the phosphate. In the drinking water treatment process, it is usually necessary to add aluminium sulphate coagulant that will produce a sludge containing aluminium. This alum sludge is often directly discharged with little or without treatment process at all, which give negative impacts to the environment and aesthetics. Studies suggest that alum sludge from drinking water treatment plant that has been dried, has a potential to be used as a media for Construction Wetlands and has a potential to reduce the nutrient. To prove this, a literature study was carried out to find the methods of dewatering the alum sludge before it was used as a Construction Wetlands’ media, various pervious designs of Construction Wetlands with alum sludge as a media, as well as the nutrient removal mechanism in it. The results of this study show that alum sludge is usually being dried naturally and then being dried again in an oven before being used as an alternative media in Constructed Wetlands. There are various mechanisms for nutrient removal in Constructed Wetlands with alum sludge as a media, but the mechanism that plays a major role in phosphorus removal is adsorption by alum sludge through ligand exchange and the mechanism that plays a major role in ammonia removal are nitrification-denitrification and plant uptake. The single-stage Constructed Wetlands’ design was found to have a higher removal efficiency than the multiple- stage Constructed Wetlands’ design.

Item Type: Thesis (Undergraduate)
Uncontrolled Keywords: alum sludge, ammonia, anaerobic baffled reactor effluent, constructed wetlands, nitrification-denitrification, ligand exchange, phosphorus, plant uptake, amonia, constructed wetlands, efluen anaerobic baffled reactor, fosfor, lumpur alum, nitrifikasi-denitrifikasi, pertukaran ligan, penyerapan tanaman
Subjects: T Technology > TD Environmental technology. Sanitary engineering > TD195.S47 Sewage disposal plants--Environmental aspects
Divisions: Faculty of Civil, Planning, and Geo Engineering (CIVPLAN) > Environmental Engineering > 25201-(S1) Undergraduate Thesis
Depositing User: Yemima Gloria
Date Deposited: 16 Feb 2022 09:10
Last Modified: 16 Feb 2022 09:10
URI: https://repository.its.ac.id/id/eprint/94026

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