การวิเคราะห์การบำบัดน้ำทิ้งจากโรงงานปลากระป๋อง โดยกระบวนการอัลตราฟิลเตรชัน

Analysis of Wastewater Treatment from Fish-Canning Factory by Ultrafiltration

Name: ขนิษฐา คำวิลัยศักดิ์

Organization : มหาวิทยาลัยเทคโนโลยีพระจอมเกล้าธนบุรี

Name: Khanitta Kamwilaisak

keyword: Dissolved Air Floatation

; Stabilization Pond

; Ultrafiltration

Abstract: In this thesis, treatment of wastewater from fish-canning factory by ultrafiltration wasanalysed in both economic and technical aspects. The wastewaters used had been pretreated bydissolved air floatation method. The experiments were carried out at 30?C and used multichannelmonolith ceramic membranes with Molecular Weight Cut-Off (MWCO) 20,000 and 50,000.The ranges of operating condition were 120-500 kPa and cross-flow velocity 2.1-4.9 m/s. Thewastewater contained approximately 320-930 mg/L of suspended solid, 3,920-4,360 mg/L oftotal solid, 1,810-2,663 mg/L of BOD and 2,619-3,552 mg/L of COD.The results indicated that the membrane with MWCO 50,000 showed higher flux andlower rejection than that MWCO 20,000. The highest flux condition was at a pressure of 500kPa and cross-flow velocity 4.9 m/s. In addition, it was found that the effectiveness ofwastewater treatment by ultrafiltration with a MWCO 20,000 membrane was higher than that bya stabilization pond system, which in turn was higher than that by ultrafiltration with a MWCO50,000 membraneThis study also compared the cost of different treatments for a system with 100 m3/hrcapacity. It was found that the costs for a system using a ceramic membrane, polymer membraneand stabilization pond were 21.77 Baht/m3, 16.53 Baht/m3 and 7.58 Baht/m3, respectively. Thefixed cost of a system using membrane was lower than the stabilization pond system, while theoperating cost was the opposite. Factors that significantly affected the treatment cost were in thefollowing order, flux, membrane life, life time of the system, membrane cost, and the interestrate. Moreover, land cost and treatment capacity had neglegible effect on the unit cost of asystem using membrane, whilst, they exhibited strong effect on a stabilization pond system.

มหาวิทยาลัยเทคโนโลยีพระจอมเกล้าธนบุรี

Address: กรุงเทพมหานคร

Email: info.lib@mail.kmutt.ac.th

Name: รัตนา จิระรัตนานนท์

Role: อาจารย์ที่ปรึกษา

Created: 2541

Issued: 2005-08-02

Modified: 2556-11-24

วิทยานิพนธ์/Thesis

ISBN: 9746244647

CallNumber: CHE831

tha

DegreeName: วิศวกรรมศาสตรมหาบัณฑิต

Level: ปริญญาโท

Descipline: วิศวกรรมเคมี

Grantor: มหาวิทยาลัยเทคโนโลยีพระจอมเกล้าธนบุรี

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