Experimental researches on adsorptive capacity of activated alumina, silica sand and anthracite coal for phosphorus were conducted. Results showed that performances of three filter media were all in line with Langmuir isotherm, and activated alumina adsorptive performance was much better than silica sand and anthracite coal for phosphorus removal. The adsorptive capacity of activated alumina, s...

Slow sand filters (SSF) are a simple water treatment technology providing an important alternative to conventional drinking treatment. SSF extensive in terms of carbon cost and chemical use but require large land area complex operate, as periodic cleaning is required prevent filter clogging. Therefore, redundant beds enable production occur during long downtimes. Underwater skimming (UWS) innov...

A septic tank combined with a sand filter is the most common onsite wastewater treatment system worldwide, since it is a simple, lowcost and reliable treatment method. Alternatives to sand in filters could be advantageous in terms of availability of material and enhanced treatment properties. In this study, flow dynamics and pollutant transport in three filter materials; sand, pine bark and act...

Abstract Background Approximately 69% of population in Tanzania lacks better sanitation, while 45.6% access to clean and safe water. To leverage this shortage, several technologies have been used for purifying water from various sources; however, there is still persistence waterborne diseases. Main body This article reviewed the efficiency common filters removing contaminants such as Escherichi...

In many developing countries like India and Thailand and also developed countries like USA and Holland many studies were conducted, concerning slow sand filters as a means for water treatment that has many advantages that suit the abilities of these countries either economically or technically. These studies indicate that slow sand filters are markedly affected by the climatic conditions and th...

In this paper, results ofa new sand filter design were presented. The drawer compacted sand filter (DCSF) is a modified design for a sand filter in which the sand layer is broken down into several layers, each of which is 10 cm high and placed in a movable drawer separated by a 10 cm space. A lab-scale DCSF was designed and operated for 330 days fed by synthetic grey water. The response of draw...