[PDF][PDF] The low-cost technology of quarry water purifying using the artificial filters of overburden rock

M Tyulenev, S Zhironkin, O Litvin - Pollution Research, 2015 - researchgate.net
… array is made on a flat surface, it is necessary after the complete formation of the filter bed to
produce dumping levee of impermeable overburden rock around the perimeter of the filter in …

Review of rock filters for the upgrade of lagoon effluents

EJ Middlebrooks - Journal (Water Pollution Control Federation), 1988 - JSTOR
… the state regulatory agency has forbidden rock filter usage because high ammonia nitrogen
concentrations in rock filter effluent were observed during the state sampling program (Table …

Investigation of crushed rock filters for dam embankment

CH Khor, HK Woo - Journal of geotechnical engineering, 1989 - ascelibrary.org
… to erosion, an effective downstream filter is needed for the safe operation of the dam.
Because of the lack of suitable alluvial sand for filter material, processed filters of crushed rocks

Waste stabilization ponds and rock filters: solutions for small communities

DD Mara, ML Johnson - Water science and technology, 2007 - iwaponline.com
… treated in a rock filter. Early work in the US has shown that rock filters are as good as other
‘pond polishing’ technologies (such as constructed wetlands or intermittent sand filters) but …

A two-step crushed lava rock filter unit for grey water treatment at household level in an urban slum

AY Katukiza, M Ronteltap, CB Niwagaba… - Journal of environmental …, 2014 - Elsevier
… of a low-cost and robust lava rock filter based on a two-step … a crushed lava rock grey water
treatment filter unit operated at … and total coliforms; and to determine the main filter design …

A critical look at rock filters

LG Rich - Journal of Environmental Engineering, 1988 - ascelibrary.org
… These studies were conducted soon after the filtersrock filter consists of submerged rock
beds through which lagoon effluent flows. The rock media is composed of 5- to 20-cm rocks

Hydraulic conductivity of gravel and sand as substrates in rock-reed filters

WE Sanford, TS Steenhuis, JY Parlange… - Ecological …, 1995 - Elsevier
Rock-reed filters, a type of constructed wetland used for wastewater treatment, show … The
focus of this paper is the evaluation of the hydraulic performance of four rock-reed filters, each …

Upgrading waste stabilization pond effluent by rock filters

MY Saidam, SA Ramadan, D Butler - Water Science and Technology, 1995 - Elsevier
… Pilot-scale rock filters were consU1Jcted at the outlet of a large waste stabilization pond …
placed in six filters and configured in Ihree lrains. The effiCIency of each filter and Ihe Ihree …

Detecting rock glacier flow structures using Gabor filters and IKONOS imagery

A Brenning, S Long, P Fieguth - Remote Sensing of environment, 2012 - Elsevier
… Our objective is to assess the utility of Gabor filters in the detection of flow patterns of rock
glaciers. We therefore apply state-of-the-art statistical and machine-learning classifiers to …

Assessment of Landsat filters for rock type discrimination, based on intrinsic information in laboratory spectra

GR Hunt, JW Salisbury - Geophysics, 1978 - library.seg.org
… band‐pass filters were formed using laboratory spectra of 284 particulate rock and soil
specimens, and the potential for using these data to discriminate among rock types was examined…