Pengoalahan Air Bekas Domestik Dengan Sistem Constructed Wetland Aliran Subsurface Untuk Menurunkan COD, TS dan Deterjen

Dhokhikah, Yeny (2006) Pengoalahan Air Bekas Domestik Dengan Sistem Constructed Wetland Aliran Subsurface Untuk Menurunkan COD, TS dan Deterjen. Masters thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Air bekas domestik merupakan air limbah dari kegiatan rumah tangga seperti mandi, pencucian dan dapur. Hampir semua air bekas memasuki badan air tanpa pengolahan terlebih dulu. Wetland adalah salah satu dari pengolahan yang memakai sumber daya alam seperti tanah dan tanah berpasir sebagai media terjadinya proses, adapun tanaman dan mikroorganisme sebagai pendegradasi. Penelitian sebelumnya menunjukkan bahwa air bekas dapat diolah dengan wetland yang ditanami cattail (Typha angustifolia) dan kana (Canna sp.). Tujuan dari penelitian ini adalah mengkaji kinerja constructed wetland aliran subsurface dengan variasi tanaman cattail dan kana, bentuk geometris konstruksi wetland persegipanjang dan bujursangkar, waktu tinggal 1 hari dan 6 jam dalam menurunkan COD,TS dan deterjen (LAS) pada air bekas. Reaktor persegipanjang berdimensi panjang, lebar dan dalam sebesar 1 m; 0,3 m; 0,5 m; dan bujursangkar 0,55m; 0,55 m; 0,5 m. Media yang dipakai pasir dengan kedalaman media 0,4 m; dan sistem alirannya kontinyu. Pengamatan dilakukan selama 8 hari. Penurunan TS tertinggi oleh media 52,81%; cattail 1,23%; kana 4,58%. Penurunan COD tertinggi oleh media 57,79%; cattail 13,83%; kana 14,06%. Penurunan LAS tertinggi oleh media 56,56%; cattail 20,86%; kana 21,07%. Efisiensi penurunan COD, LAS tertinggi yaitu 72%; 68% pada reaktor persegi panjang ditanam cattail dalam waktu detensi satu hari. Efisiensi penyisihan TS tertinggi adalah 56% pada reaktor persegi panjang yang ditanami ganja dengan waktu detensi satu hari. Efisiensi penyisihan TS, COD, LAS lebih tinggi yaitu 52%; 65%; 48% pada reaktor bujursangkar-cattail dan waktu tinggal 1 hari.
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Grey water is wastewater from domestic activities like bathing, washing, laundering and dishes washing from kitchen. Mostofall of grey water enter the water body without previous treatment. Wetland is a kind of treatment that use natural resourceslike soil and sandy soil as medium with in the process occurs, plants and microorganisms as decomposer. Previousstudies have shownthat grey water can be treated by wetland which planted by cattail (Typha angustifolia) and canna-lilies (Canna sp.). Aim of research wasto study the performance of subsurface flow constructed wetland with variable of plant, cattail and canna-lilies; the geometric shape of wetland construction, rectangular and rectangle; detention time in reactor, 1 day and 6 hours in order to decrease the concentration of COD, TS and detergent (LAS) in grey water. Rectangular reactor had dimension in length, width and depth were I m; 0.3 m; 0.5 m; and rectangle were 0.55 m; 0.55 m; 0.5 m. Sand was used as medium with 0.4 m in depth and the system had continuous flow. The observation washeldfor 8 days. The highest removal of TS were by medium 52.81%; cattail 1.23%; canna-lilies 4.58%. The highest removal of COD were by medium 57.79%; cattail 13.83%; canna-lilies 14.06%. The highest removal ofLAS were by medium 56.56%; cattail 20.86%; canna-lilies 21.07%. The highest removal efficiency of COD, LAS were 72%; 68% in rectangular reactor planted by cattail in one day detention time. The highest of removal efficiency of TS was 56% in rectangle reactor planted by canna in one day detention time. Higher removal efficiency of TS, COD, LAS were 52%; 65%; 48% in rectangle reactor planted by cattail in one day detention time.

Item Type:	Thesis (Masters)
Additional Information:	RTL 628.3 Dho p 2005
Uncontrolled Keywords:	Grey water, subsurface flow constructed wetland, cattail, canna-lilies, COD,TS, detergent
Subjects:	T Technology > TD Environmental technology. Sanitary engineering > TD646 Sewage--Purification
Divisions:	Faculty of Civil Engineering and Planning > Environment Engineering > 25101-(S2) Master Thesis
Depositing User:	Anis Wulandari
Date Deposited:	29 Aug 2023 04:59
Last Modified:	29 Aug 2023 04:59
URI:	http://repository.its.ac.id/id/eprint/97955

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