Abstract. Breakthrough curves (BTCs) are a valuable tool for qualitative and quantitative examination of transport patterns in porous media. Although breakthrough (BT) experiments simple, they often require extensive sampling multi-component chemical analysis. In this work, we examine spectral induced polarization (SIP) signals measured along soil column during BT homogeneous heterogeneous prof...

Several theoretical and empirical models are available to correlate experimental breakthrough curves of water pollutants, one which is the two-parameter Belter model. Although not as well known century-old Bohart–Adams model, model being used with sufficient frequency merit wider awareness its strengths weaknesses. Through a systematic analysis, it shown that two adjustable parameters analogous...

The gas push-pull test (GPPT) is a single-well gas-tracer method to quantify in situ rates of CH4 oxidation in soils. To improve the design and interpretation of GPPT field experiments, gas component transport during GPPTs was examined in abiotic porous media over a range of water saturations (0.0 < or = Sw < or = 0.61). A series of GPPTs using He, Ne, and Ar as tracers for CH4 were performed a...

• The Bass model is widely used in business innovation and marketing research. It can function as a breakthrough curve model. outperforms the Bohart–Adams Modified describe highly asymmetric curves.

Sorption characteristics of Co which is rather troublesome nuclide from the aspect of low level radioactive waste disposal was studied. By use of ultraviolet-visible spectrophotometer, coexistence of ionic and colloidal cobalts was verified in aqueous solution with pH>7. Column test was carried out with pH=8.75 and it showed that breakthrough curve obtained consists of two types of curves due t...

Soil and aquifer materials have a finite capacity for colloid retention. Blocking of the limited number of available retention sites further decreases the rate of retention with time and enhances risks (e.g., pathogens or colloid-associated contaminants) or benefits (e.g., remediation by microorganisms or nanoparticles) of colloid migration. Our objective was to use a straightforward procedure,...