scholarly journals Effects of trans-membrane-pressure on tofu industry wastewater treatment through ultrafiltration and reverse osmosis processes

2020 ◽  
Author(s):  
Nida Fathia ◽  
Sutrasno Kartohardjono
Keyword(s):  
Wastewater Treatment ◽  
Reverse Osmosis ◽  
Industry Wastewater

Online Instrumentation of Petroleum Refinery Wastewater Treatment Plants

1989 ◽  
Vol 24 (3) ◽  
pp. 435-450 ◽  
Author(s):  
J.P. Stephenson
Keyword(s):  
Wastewater Treatment ◽  
Continuous Monitoring ◽  
Wastewater Treatment Plants ◽  
Petroleum Refinery ◽  
Petroleum Industry ◽  
Refinery Wastewater ◽  
Analytical Instruments ◽  
Petroleum Refinery Wastewater ◽  
Sample Characterization ◽  
Industry Wastewater

Abstract Several online analytical instruments are commercially available to allow continuous monitoring of petroleum industry wastewater treatment plants. Satisfactory usage of these instruments requires -special attention for sample preconditioning and sample characterization prior to selection. Specific examples of the available instruments are provided. Effective maintenance of instruments is emphasized.

Water and Wastewater Treatment for a Small Island Resort

1989 ◽  
Vol 21 (2) ◽  
pp. 189-193 ◽  
Author(s):  
B. Rigden
Keyword(s):  
Wastewater Treatment ◽  
Reverse Osmosis ◽  
Small Island ◽  
Rotating Biological Contactor ◽  
Water And Wastewater Treatment ◽  
Water And Wastewater ◽  
Operational Data ◽  
Reverse Osmosis Desalination

The design of a reverse osmosis desalination unit and a rotating biological contactor for water and wastewater treatment for a small island resort is described. Some operational data are presented and recommendations for design flows and loadings are made.

scholarly journals Direct Osmosis for Reverse Osmosis Fouling Control: Principles, Applications and Recent Developments

2009 ◽  
Vol 3 (1) ◽  
pp. 8-16 ◽  
Author(s):  
Jian-Jun Qin ◽  
Boris Liberman ◽  
Kiran A. Kekre ◽  
Ado Gossan
Keyword(s):  
Wastewater Treatment ◽  
Reverse Osmosis ◽  
Membrane Fouling ◽  
Chemical Potential ◽  
Water Desalination ◽  
Water And Wastewater Treatment ◽  
High Pressure Pump ◽  
Permeable Membrane ◽  
Fouling Control ◽  
Ro Membrane

Reverse osmosis (RO) has been widely applied in various water and wastewater treatment processes as a promising membrane technology. However, RO membrane fouling is a global issue, which limits it operating flux, decreases water production, increases power consumption and requires periodical membranes Cleaning-in-Place (CIP) procedure. This may result in low effectiveness, high cost and adds environmental issues related to the CIP solutions disposal. Forward osmosis (FO) or direct osmosis (DO) is the transport of water across a semi-permeable membrane from higher water chemical potential side to lower water chemical potential side, which phenomenon was observed in 1748. The engineered applications of FO/DO in membrane separation processes have been developed in food processing, wastewater treatment and seawater/brackish water desalination. In recent years, DO has been increasingly attractive for RO fouling control as it is highly efficient and environmentally friendly technique which is a new backwash technique via interval DO by intermittent injection of the high salinity solution without stoppage of high pressure pump or interruption of the operational process and allows keeping RO membrane continuously clean even in heavy bio-fouling conditions and operating RO membranes at high flux. This paper provides the state-of-the-art of the physical principles and applications of DO for RO fouling control as well as its strengths and limitations.

The Effectiveness of the Use of Tripikon-S in Tofu İndustry Wastewater Treatment

2021 ◽  
pp. 180-186
Author(s):  
Sardi ◽  
Edy Sriyono ◽  
Tania Edna Bhakty ◽  
Ganang Azas Hayininda
Keyword(s):  
Wastewater Treatment ◽  
Industry Wastewater

Second use for old reverse osmosis membranes: wastewater treatment

Desalination ◽  
2003 ◽  
Vol 157 (1-3) ◽  
pp. 65-72 ◽  
Author(s):  
Jose M. Veza ◽  
Juan J. Rodriguez-Gonzalez
Keyword(s):  
Wastewater Treatment ◽  
Reverse Osmosis ◽  
Second Use ◽  
Reverse Osmosis Membranes

Analysis of sludge aggregates produced during electrocoagulation of model wastewater

2015 ◽  
Vol 73 (1) ◽  
pp. 161-166
Author(s):  
B. Załęska-Chróst ◽  
R. Wardzyńska
Keyword(s):  
Wastewater Treatment ◽  
Fractal Dimension ◽  
Settling Velocity ◽  
Paper Industry ◽  
Additional Parameter ◽  
Treatment Control ◽  
Sludge Flocs ◽  
Lower Water Content ◽  
A Current ◽  
Industry Wastewater

This paper presents the results of the study of sludge aggregates produced during electrocoagulation of model wastewater of a composition corresponding to the effluents from the cellulose and paper industry. Wastewater was electrocoagulated statically using aluminium electrodes with a current density of 31.25 A m−2 and 62.50 A m−2. In subsequent stages of the treatment, sludge flocs were collected, their size was studied and their floc settling velocity (30–520 μm s−1) and fractal dimension (D) were determined. The values of D ranged from 1.53 to 1.95 and were directly proportional to the degree of wastewater treatment. Higher values of D were determined for sludge with lower water content (after 24 hours’ settling). Fractal dimension can therefore be used as an additional parameter of wastewater treatment control.

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