Hold the Mercury
Novinda Corp.’s Amended Silicates HgX
(AS-HgX) is a non-carbon mercury capture reagent
that removes mercury from coal-fired power emissions, enabling utilities to comply with the U.S.
Environmental Protection Agency’s strict mercury
and air toxicity standards.
A mineral-based product that removes mercury
via chemical reaction, AS-HgX removes mercury
with two to three times the efficiency of competing
products. The technology consists of a bentonite
substrate that is amended with a metal sulfide that
acts as the reagent to efficiently and effectively capture mercury from coal-fired flue gas. A chemical
reaction forms mercuric sulfide on the reaction
sites of particle surfaces in flue gas.
Extensive testing in 50 power plants showed
that compared to carbon-based products, AS-HgX
provides a 25 to 50% cost savings, reduces operating expenses and consistently achieves MATS
compliance. In addition, AS-HgX is non-flammable, non-corrosive and generally can be used with
a power plant’s existing injection equipment with
little or no modifications. Because AS-HgX isn’t
carbon-based, it preserves fly ash resale value ($15/
ton) and eliminates landfill costs ($20/ton).
◗ Novinda Corp., www.novinda.com
Cleaning Up Catastrophic Messes
On March 11, 2011, the Fukushima I Nuclear Power
Plant experienced a catastrophic failure, resulting in
the meltdown of three of the plant’s six nuclear reactors. The failure occurred when the plant was hit by a
tsunami triggered by the magnitude 9.0 Tohoku earthquake. The plant began releasing substantial amounts
of radioactive material on March 12, becoming the
largest nuclear incident since the Chernobyl disaster
in April 1986.
Hitachi Research Laboratory and Hitachi-GE
Nuclear Energy Ltd joined together to develop the
Hitachi Cs-Sr simultaneous adsorbent to treat radionuclide-contaminat-ed water being stored at the Fukushima Daiichi Nuclear Power Station. This
adsorbent is the first of its kind that can simultaneously adsorb radioactive
cesium (Cs) and radioactive strontium (Sr) dissolved in water at a high adsorp-
Corn Fears No Drought
According to the U.S. Drought Monitor, many states across the U.S. currently display drought conditions ranging
from severe to exceptional, including regions in the Western Great Plains. In 2013, corn farmers in these areas were
able to plant deeper roots and produce strong yields with Monsanto’s Genuity DroughtGard Hybrids.
Genuity DroughtGard Hybrids are the agriculture industry’s first biotech drought solution. They are unique
in the marketplace as they offer superior germplasm (living tissue from which new plants can grow), combined
with a Yield and Stress transgene (DNA of one organism that has been transferred to another organism),
bringing more technical benefits to the production field. The dual advancement path was created to enable the
development and selection of germplasm for the target market, along with a qualification of the transgene that
has been shown to conserve water under drought stress. The integrated Yield and Stress transgene is the first of
its kind in the industry.
The biotech trait in the solution provides the corn plant the ability to slow down water consumption when
experiencing drought stress. This hydroefficiency leaves more moisture in the soil, which enables the plant to endure
drought stress for a longer period of time, helping the plant to persevere until more precipitation occurs.
◗ Monsanto, www.monsanto.com
Particulate Filter Relies on RF
Jointly developed by Filter Sensing Technologies Inc., Massachusetts
Institute of Technology and Oak Ridge National Laboratory, the
RF-DPF Diesel Particulate Filter Sensor is a radio frequency
(RF)-based sensor and control system used to measure the
amount, type and distribution of contaminants on ceramic die-
sel particulate filters (DPFs). The RF-DPF is designed to deliver
reduced engine fuel consumption, decreased maintenance costs
and extended life for DPFs, which are expensive and required on
all new diesel vehicles to meet strict emissions regulations.
The RF-DPF uses RF signals to provide a direct measure of the DPF
loading state. The system consists of one or two small probes or antennas
mounted in the DPF housing. The probe(s) are connected to the RF sensor con-
trol unit, and consist of small stainless steel rod or stub antennas used to transmit
and receive the RF signals.
The system is designed to operate with either a signal antenna (reflection mode) or dual antenna
(transmission mode). The control unit contains low-cost circuit chips. Instead of using the wireless signal
to transmit data, the wireless signal is used to conduct the measurements. The wireless signal propagates
through the ceramic filter, but is fully contained in the metal filter housing. Soot, which is primarily composed of black carbon, strongly absorbs the RF signal. The decrease in signal strength can readily be correlated to the amount of soot accumulated on the filter.
◗ Filter Sensing Technologies Inc., www.dpfsensor.com
tion rate of 99% or better, satisfying the standards for
drinking water established by the Japanese Ministry
of Health, Labor and Welfare (radiation dose of 10
Bq/L or less) using half the quantity of conventional
The adsorbent consists of inorganic substances
such as crystalline silicotitanate (CST) pelletized
using an inorganic binder. Pelletized CST is treated
with a dilute sodium-hydroxide solution for chemical
surface modification and for increasing the amount
of sodium cations (Na+) by substituting them for
hydrogen cations. Adsorption of Cs and Sr is caused
by the ion exchange reaction of Na on the adsorbent surface with Cs and Sr.
The adsorbent has separate adsorption sites (or reaction sites) for Cs and Sr,
and it adsorbs each separately without any interference.
◗ Hitachi Research Laboratory, Hitachi Ltd, www.hitachi.com/rd/hrl/