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ITS » Undergraduate Theses » Teknik Kimia Ekstensi S1
Posted by sarwono@its.ac.id at 15/03/2010 16:48:09  •  2150 Views


KINERJA DAN IDENTIFIKASI FOULING PADA SUBMERGED MEMBRANE ADSORPTION HYBRID BIOREACTOR SMAHBR

PERFORMANCE AND IDENTIFICATION OF FOULING IN A SUBMERGED MEMBRANE ADSORPTION HYBRID BIOREACTOR SMAHBR

Author :
Pratiwi, Hasasty ( 2305109044 )
Nofi, Sisca Rifia Citra




ABSTRAK

Soluble Microbial Product SMP di dalam SMAHBR mempunyai pengaruh yang sangat penting pada proses biologis di dalam pengolahan limbah cair. Hal itu disebabkan karena dampaknya terhadap kualitas effluen dan efisiensi pengolahan limbah cair. Akumulasi SMP pada membran dapat memicu terjadinya fouling pada Submerged Membrane Adsorption Hybrid Bioreactor SMAHBR sehingga dapat menyebabkan penurunan fluks permeat terhadap waktu operasi tertentu. Pengendalian fouling pada membran tidak cukup hanya dengan menggunakan teknik backflushing tetapi bagian dari proses biologis juga berpengaruh terhadap terjadinya fouling pada sistem SMAHBR Pada penelitian ini digunakan limbah yang berasal dari pengolahan limbah Surabaya industrial Estate Rungkut SIER. Limbah pada SMAHBR beroperasi pada volume 50 l dan konsentrasi Mixed Liquor Suspended Solid MLSS 8000 mgl dan 15000 mgl konsentrasi Chemical Oxygen Demand COD 1500 mgl dan 2500 mgl SRT 10 20 30 hari. Serta dilakukan penambahan Powdered Activated Carbon PAC pada SMAHBR sebesar 0 dan 10 terhadap konsentrasi biomassa MLSS. Penelitian ini ditujukan untuk mengetahui besarnya COD removal fluks permeat serta jumlah karbohidrat dan protein. Hasil dari penelitian ini mengindikasikan bahwa kinerja SMAHBR secara keseluruhan relatif stabil dan baik walaupun beroperasi pada konsentrasi MLSS yang tinggi. Pada konsentrasi MLSS 15000 mgl proses biologis cenderung menurun tetapi proses filtrasi cenderung meningkat bila dibandingkan pada MLSS 8000 mgl. Removal COD untuk masing-masing konsentrasi COD 1500 mgl dan 2500 mgl memberikan hasil yang lebih baik bila beroperasi pada SRT 30 hari dibandingkan pada SRT 20 hari dan 10 hari. Fouling berpotensi terjadi pada SRT yang pendek dan MLSS yang tinggi.SMP dimana mengandung karbohidrat dan protein sebagai penyebab fouling lebih banyak ditemukan pada SRT 10 hari dan MLSS 15000 mgl yaitu 39 mgl protein dan 57 mgl karbohidrat sebelum penambahan PAC sedangkan setelah penambahan 10 PAC akumulasi SMP menurun menjadi 24 mgl protein dan 40 mgl karbohidrat. Removal COD sebelum penambahan PAC sebesar 916 sd 946 dan setelah penambahan PAC sebesar 947 sd 970. Sehingga penambahan 10 PAC pada sistem ini efektif meningkatkan kinerja SMAHBR.


ABSTRACT

Soluble Microbial Product SMP in SMAHBR have very important influence at biological process in waste water treatment. It is caused by its impact to quality of effluent and efficiency of waste water treatment. The accumulation of SMP at membrane cause fouling at Submerged Membrane Adsorption Hybrid Bioreactor SMAHBR so that amount of flux became decrease to certain operation time. Fouling control at membrane not only by using technique of backflushing but part of biological process also have an effect to the happening of fouling at SMAHBR This experiment used sludge from wastewater treatment at Surabaya Industrial Estate Rungkut SIER. Sludge at SMAHBR was operated in volume 50 l and MLSS concentration of 8000 mgl and 15000 mgl COD concentration of 1500 mgl and 2500 mgL SRT of 10 20 and 30 days. Addition of PAC at SMAHBR in number of 0 and 10 to concentration of activated sludge. Research is conducted to obtain data in the form of COD removal flux of permeate and also amount of protein and carbohydrate. The result of research indicate that performance of SMAHBR as a whole remain to stable and good although was operated at high concentration of sludge. At MLSS concentration of 15000 mgl biological process tend to go down but filtration process tend to increase compared to MLSS of 8000 mgl. COD removal to each COD concentration of 1500 mgl and 2500 mgl better with SRT of 30 days than SRT of 20 days and 10 days. The fouling potencial of SMP considerably increased as SRT shortened and MLSS heightened. SMP which consist of both protein and carbohydrate cause of fouling were found at SRT of 10 days and MLSS of 15000 mgl that is 39 mgl Protein and 57 mgl Carbohydrate before addition of PAC. While after addition 10 PAC the accumulation of SMP decreased to 24 mgl Protein and 40 mgl Carbohydrate. The COD removal before addition of PAC within a range 916 to 946 and after addition 10 PAC within range 947 to 970. So that addition of 10 PAC effective to improve performance of SMAHBR



KeywordsHybrid bioreactor; Fouling; Powdered Activated Carbon
 
Subject:  Penelitihan limbah
Contributor
  1. Dr. Ir. Tri Widjaja, M.Eng.
Date Create: 15/03/2010
Type: Text
Format: pdf
Language: Indonesian
Identifier: ITS-Undergraduate-3100010037819
Collection ID: 3100010037819
Call Number: RSK 628.3 Pra k


Source
Undergraduate theses, Chemical Engineering, RSK 628.3 Pra k, 2009

Coverage
ITS Community Only

Rights
Copyright @2009 by ITS Library. This publication is protected by copyright and permission should be obtained from the ITS Library prior to any prohibited reproduction, storage in a retrievel system, or transmission in any form or by any means, electronic, mechanical, photocopying, recording, or likewise. For information regarding permission(s), write to ITS Library




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  1.  ITS-Undergraduate-8879-2305100051-Abstract_in.pdf - 53 KB
  2.  ITS-Undergraduate-8879-2305100051-Abstract_en.pdf - 52 KB
  3.  ITS-Undergraduate-8879-2305100051-Conclusion.pdf - 9 KB




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