Biosorption Processes for Natural and Waste Water Treatment– Part II: Experimental Studies and Theoretical Model of a Biosorption Fixed Bed

2003 ◽  
Vol 3 (11) ◽  
pp. 439-445 ◽  
Author(s):  
V.V. Pidlisnyuk ◽  
R.M. Marutovsky ◽  
K.-H. Radeke ◽  
N.A. Klimenko
Keyword(s):  
Waste Water ◽  
Theoretical Model ◽  
Water Treatment ◽  
Waste Water Treatment ◽  
Fixed Bed ◽  
Experimental Studies

scholarly journals Pengolahan Air Limbah Domestik Menggunakan Kombinasi Settlement Tank dan Fixed-Bed Coloumn Up-Flow

2018 ◽  
Vol 2 (2) ◽  
pp. 84
Author(s):  
Khalimatus Sa’diyah ◽  
Muchamad Syarwani ◽  
S. Sigit Udjiana
Keyword(s):  
Waste Water ◽  
Water Pollution ◽  
Water Treatment ◽  
Waste Water Treatment ◽  
Fixed Bed ◽  
Domestic Waste ◽  
Aeration Time ◽  
Bed Height ◽  
Sand Beds

Air limbah domestik yang memiliki kadar BOD, COD, TSS, Turbidity dan pH tinggi menjadi salah satu penyebab pencemaran air. Sehingga perlu adanya pengolahan lebih lanjut sebelum dibuang ke sungai atau badan air. Salah satu pengolahan air limbah yang bisa digunakan adalah kombinasi settlement tank dan fixed-bed coloumn up-flow. Alat ini dipilih karena harganya terjangkau, bahan mudah didapat dan peralatannya mudah dioperasikan. Tujuan utama penelitian ini untuk menurunkan kadar turbidity, TSS dan BOD. Penurunan parameter ini dipengaruhi oleh waktu settlement tank, waktu pengontakkan effluent dan tinggi unggun pasir. Hasil penelitian pada settlement tank secara aerob didapatkan persen penurunan turbidity, TSS dan BOD  yang tertinggi pada settlement tank 6 hari dengan nilai 48,21%; 75,27% dan 52,84 %. Pada alat fixed-bed coloumn up-flow secara kontinyu dengan waktu aerasi settlement tank 6 hari didapatkan persen penurunan turbidity yang tertinggi pada tinggi unggun pasir 20 cm sebesar 18,57%, sedangkan  persen penurunan TSS dan BOD yang paling tinggi pada tinggi unggun pasir 30 cm yaitu 41,46% dan 11,23%.Domestic waste water is one of the causes of water pollution. Domestic waste water has high levels of BOD, COD, TSS, Turbidity and pH. Therefore, it need futher processing so that the conditions is safe when discharged in river or lake. One of waste water treatment is combination of settlement tank and fixed-bed coloumn up-flow. This equipment is selected because the price is affordable, materials and equipment can be obtained, and easy to operate. The main purpose of this study is to decrease levels of turbidity, TSS and BOD. Decreased parameters are affected by time of seetlement tank, time of effluent contact and high of sand beds. Result of research on settelement tank aerob obtained highest percentage of turbidity, TSS and BOD decrease in 6 day settlement tank with value 48.21%, 75.27% and 52.84%. In a continuous fixed-bed coloumn up-flow with aeration time,  6-day in settlement tank, obtained the highest percentage of turbidity reduction at 20 cm sand bed height of 18.57%, while the highest percentage of TSS and BOD reduction in sand bed height was 30 cm is 41.46% and 11.23%.

Improvement of Efficiency of Waste Water Treatment from Metals Using Flotation Combines

2020 ◽  
Vol 24 (10) ◽  
pp. 4-7
Author(s):  
B.S. Ksenofontov ◽  
A.S. Kozodayev ◽  
R.A. Taranov ◽  
M.S. Vinogradov
Keyword(s):  
Waste Water ◽  
Heavy Metals ◽  
Water Treatment ◽  
Waste Water Treatment ◽  
Local Treatment ◽  
Experimental Studies ◽  
Treatment Unit ◽  
Reagent Treatment ◽  
Treatment Facilities ◽  
Technical Solutions

The work deals with the use of flotation combines for the treatment of waste water from heavy metals. The analysis of various methods of treatment of waste water from heavy metals was carried out, which revealed the most promising technical solutions with their possible implementation for modernization of existing treatment facilities of the enterprise. Experimental studies of several versions of technological schemes were carried out on the basis of which a technological scheme of waste water treatment was selected, including all positions of equipment existing at local treatment facilities, and supplemented with a reagent treatment unit, treatment in a flotation complex using reagents, application of filters and pH correction.

Implementing biofilm carriers into activated sludge process-15 years of experience

1998 ◽  
Vol 37 (9) ◽  
pp. 167-174 ◽  
Author(s):  
N. Müller
Keyword(s):  
Waste Water ◽  
Water Treatment ◽  
Nitrogen Removal ◽  
Waste Water Treatment ◽  
Fixed Bed ◽  
Activated Sludge Process ◽  
Water Treatment Plants ◽  
Biofilm Carriers ◽  
Practical Experiences

Seven full-scale hybrid systems have been operating in waste water treatment plants in Southern Germany since the early eighties. The aerobic submerged biofilm technology applied is known as Bio-2-Sludge process. The plants have originally been designed for carbon removal and were modified later on to allow nitrogen removal. For this purpose, the age of the operating sludge had to be raised. This was achieved without any addition of reactor volume by installation of submerged biofilm carriers. The use of the submerged, fixed bed devices results in a very efficient sludge, allowing MLSS of up to 11 g/l. Operational results show both a purification improvement of BOD and ammonia and the existence of simultaneous denitrification. Practical experiences of long-term operations are being reported.

Radioactive Waste Water Treatment by Inorganic Membrane System

2010 ◽  
Author(s):  
Junfeng Li ◽  
Fujuan Han ◽  
Jianlong Wang
Keyword(s):  
Waste Water ◽  
Water Treatment ◽  
Acrylic Acid ◽  
Waste Water Treatment ◽  
Experimental Studies ◽  
Membrane System ◽  
Inorganic Membrane ◽  
Radioactive Waste Water ◽  
Removal Efficiencies ◽  
Selection For

The removal efficiencies of strontium, cesium and cobalt by inorganic membrane with cut-off 8kD were studied. In order to improve the removal efficiency of non-active nuclides, soluble macropolymers sodium poly(acrylic) acid (NaPAA) of different molecule sizes were selected as chemical assistant reagents to make comparative experimental studies. The molecule of 8000,50000 and 100000 D NaPAA were used. The flux and removal rates of different systems were mainly studied. The results show that for inorganic membrane with pore size of 8kD molecule of 50000 Da NaPAA is the best selection for assistant reagents.

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