Leather industry, one of the polluting industries because of generation of huge amount of liquid and solid wastes, also emits obnoxious smell because of degradation of proteinous material of skin and generation of gases such as NH3, H2S and CO2. Solid wastes are raw trimmings, fleshings, chrome shavings, buffing dusts and keratin wastes. Accumulation of these wastes lead to sludge problem and c...

Abstract IoT makes it possible to automatically adjust pH based on sensor numerical data for NFT hydroponic lettuce. In this research, we use sensors of light intensity, farm temperature , humid reservoir level the outside farm, at Kartika Farm and Turus Asri. Data were taken five cropping periods. We got different adjustment pattern these Total Dissolved Solids (TDS) control. Furthermore, Farm...

BACKGROUND The aim of the present study was to evaluate the physical, biochemical and antioxidant properties of four Malaysian monofloral types of honey (gelam, longan, rubber tree and sourwood honeys) compared to manuka honey. Several physical parameters of honey, such as pH, moisture content, electrical conductivity (EC), total dissolved solids (TDS), color intensity, total sugar and sucrose ...

In the rubber dam's impact area, the groundwater total hardness (TH) has declined since 2000, ultimately dropping to 100-300 mg/L in 2012. pH levels have shown no obvious changes. NH4-N concentration in the groundwater remained stable from 2000 to 2006, but it increased from 2007 to 2012, with the largest increase up to 0.2 mg/L. NO3-N concentration in the groundwater generally declined in 2000...

Abstract The optical properties of two water supply samples Kathmandu Upatyaka Khanepani Limited (KUKL) and Valley Water Supply Improvement Project (KVWSIP) in the Kupondole Area, Lalitpur, Nepal show that transmittance light is higher for KVWSIP sample than KUKL. A large amount work has been done to test purities KUKL supplies (chemically), but even their have not studied. This method no hazar...

The paper investigates the dynamic behaviour of Inverse Fluidized Bed (IFB) for treatment petroleum wastewater using adsorbents date seed activated carbon (DSAC) and commercial coconut shell (CCAC). fluidization is downward flow technique, where density particles are less compared to liquid density. IFB wasexperimentally validated by analysing chemical oxygen demand (COD) removalefficiency, tot...

the present study was carried out to evaluate three interpolation methods including weighted moving average (wma) with the power of 2 and 3, kriging and cokriging methods. data of 23 wells in mazandaran province were collected in fall and spring 2006. seven parameters including electrical conductivity (ec), ph, total dissolved solids (tds), sodium adsorption ratio (sar), total hardness (th), ch...