scholarly journals Depth Distribution of Suspended Matter in the Sand Layer of Slow Sand Filters that Take the Surface River Water.

1996 ◽  
Vol 32 (2) ◽  
pp. 123-129
Author(s):  
MASUO YAMAMOTO ◽  
NOBUTADA NAKAMOTO
Keyword(s):  
River Water ◽  
Suspended Matter ◽  
Depth Distribution ◽  
Sand Layer ◽  
Sand Filters

Protection layers for the extension of slow sand filter running times in wastewater reuse

2002 ◽  
Vol 2 (1) ◽  
pp. 305-309
Author(s):  
H.-J. Mälzer ◽  
R. Gimbel
Keyword(s):  
Pressure Drop ◽  
Suspended Solids ◽  
Wastewater Reuse ◽  
Sand Layer ◽  
Sand Filters ◽  
Sand Filter ◽  
Running Time ◽  
Slow Sand Filter ◽  
Surface Filtration

The running time of slow sand filters in wastewater reuse is limited by the increase of pressure drop which is mainly caused by the surface filtration of suspended solids. Surface filtration mechanisms on the top of filter sand layer can be avoided e.g. by protection layers. Choosing suitable materials for protection layers a considerable extension of slow sand filter running times can be achieved.

scholarly journals Analysis of Clean Water Treatment with Slow Sand Filter Using Beach Sand and Quartz Sand

2021 ◽  
Vol 9 (2) ◽  
pp. 072
Author(s):  
Bintang Saptanty Artidarma ◽  
Laili Fitria ◽  
Hendri Sutrisno
Keyword(s):  
River Water ◽  
Quartz Sand ◽  
Total Coliform ◽  
Silica Sand ◽  
Beach Sand ◽  
Clean Water ◽  
Sand Filters ◽  
Sand Filter ◽  
Before And After ◽  
Slow Sand Filter

AbstractThe purpose of this study is to analyze the quality of Kapuas River water before and after processing and to analyze the comparative effectiveness of beach sand and quartz sand in slow sand filters with the thickness is 110 cm for processing Kapuas River water. The research method that used is the down flow method. The parameters that measured were pH, Turbidity, TDS, Organic Substances, Fe, and Total Coliform. The initial pH parameter is 5.6 and the results of filtering with beach sand 1, beach sand 2, silica sand 1, and silica sand 2 are 7; 6.9; 7,1; 6.9. The initial turbidity parameter was 35.2 and the filtering result are 1.21; 1.7; 16.0; 2.87. The initial TDS parameter was 122.4 and the filtering result was 90.5; 88.1; 127.5; 80.5. The initial Organic Substance parameter was 102.71 and the result after filtering was 77.92; 63.82; 98.99; 98.17. Keywords: beach sand, clean water, slow sand filter, quartz sand AbstrakTujuan Penelitian ini untuk menganalisa kualitas Air Sungai Kapuas sebelum maupun sesudah pengolahan dan menganalisa perbandingan efektivitas pasir pantai dan pasir kuarsa pada Saringan Pasir Lambat (SPL) dengan ketebalan 110 cm dalam mengolah air Sungai Kapuas. Metode penelitian yang digunakan adalah metode down flow. Parameter yang diukur adalah pH, Kekeruhan, TDS, Zat Organik, Kadar Fe, dan Total Coliform. Parameter pH awal 5,6 dan hasil penyaringan dengan pasir pantai 1, pasir pantai 2, pasir silika 1, dan pasir silika 2 adalah 7; 6,9; 7,1; 6,9. Parameter Kekeruhan awal 35,2 dan hasil penyaringan adalah 1,21; 1,7; 16,0; 2,87. Parameter TDS awal 122,4 dan hasil penyaringan adalah 90,5; 88,1; 127,5; 80,5. Parameter Zat Organik awal 102,71 dan hasil penyaringan adalah 77,92; 63,82; 98,99; 98,17. Kata Kunci: air bersih, pasir kuarsa, pasir pantai, saringan pasir lambat

Protection layers for the extension of slow sand filter running times in wastewater reuse

2006 ◽  
Vol 6 (1) ◽  
pp. 105-111 ◽  
Author(s):  
H.-J. Mälzer ◽  
R. Gimbel
Keyword(s):  
Pressure Drop ◽  
Suspended Solids ◽  
Wastewater Reuse ◽  
Sand Layer ◽  
Sand Filters ◽  
Sand Filter ◽  
Running Time ◽  
Slow Sand Filter ◽  
Surface Filtration

The running time of slow sand filters in wastewater reuse is usually limited by the increase of pressure drop which is mainly caused by surface filtration effects of suspended solids. Surface filtration mechanisms on the top of filter sand layer can be avoided e.g. by so-called protection layers. By choosing suitable materials for protection layers a considerable extension of slow sand filter running times can be achieved.

scholarly journals Trace Elements in the Chernaya River Water and Evaluation of their Income with the Riverine Inflow into the Sevastopol Bay in Winter 2020

2020 ◽  
Author(s):  
L. V. Malakhova ◽  
◽  
V. Yu. Proskurnin ◽  
V. N. Egorov ◽  
O. D. Chuzhikova-Proskurnina ◽  
...  
Keyword(s):  
Trace Elements ◽  
River Water ◽  
Suspended Matter ◽  
Catchment Area ◽  
Winter Season ◽  
River Mouth ◽  
Flow Rates ◽  
Sevastopol Bay ◽  
The World ◽  
Dissolved Phase

The aim of this work is to determine the ten trace elements content (V, Co, Ni, Cu, Zn, As, Se, Mo, Cd, Pb) in the Chernaya River water and evaluation of their income with the riverine inflow into Sevastopol Bay. The water was sampled in the winter season 2020 in the Baydar Valley and at the river mouth. It is shown that the main share of trace elements in the Chernaya River water is transferred in the composition of suspended particles. Concentrations in suspended matter for all trace elements were higher than their dissolved concentrations from 4 times for Mo to 1.5·104 for Pb. Dissolved concentrations of all the studied trace elements (except for Zn) appeared to be lower than the world averages in riverine waters. Concentrations of Cu, Zn, Pb and Cd in suspended matter exceeded both Clarkes in soils of Crimea and average values appeared in rivers of the world. The lack of correlation between the trace elements concentration in suspended matter and Clarkes in soils as well as the unevenness of their content along the river indicate the additional sources of trace elements entering the river water along with the washout from the catchment area. The estimations of dissolved and particulate trace elements entry with the riverine discharge into the Sevastopol Bay were carried out based on concentration and flow rates in January and February 2020. Excluding Zn and Mo, the trace elements inflow with the suspended matter exceeded their flux in dissolved phase from 1.3 to 14 times.

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