Some aspects of the present disclosure relate to a method comprising obtaining a sorbent polymer composite material, contacting the sorbent polymer composite material with mercury vapor to form a used sorbent polymer composite material; wherein the used sorbent polymer composite material comprises oxidized mercury and wherein the used sorbent polymer composite material emits oxidized mercury vapor; and contacting the used sorbent polymer composite material with a halogen source, so as to result in a treated sorbent polymer composite material. In some embodiments, the treated sorbent polymer composite material emits less than 0.01 μg oxidized mercury vapor per minute per gram of the treated sorbent polymer composite, compared to a used sorbent polymer composite, when measured at 65° C. in air having a relative humidity of 95%.

Some aspects of the present disclosure relate to a method comprising obtaining a sorbent polymer composite material, contacting the sorbent polymer composite material with mercury vapor to form a used sorbent polymer composite material; wherein the used sorbent polymer composite material comprises oxidized mercury and wherein the used sorbent polymer composite material emits oxidized mercury vapor; and contacting the used sorbent polymer composite material with a halogen source, so as to result in a treated sorbent polymer composite material. In some embodiments, the treated sorbent polymer composite material emits less than 0.01 μg oxidized mercury vapor per minute per gram of the treated sorbent polymer composite, compared to a used sorbent polymer composite, when measured at 65° C. in air having a relative humidity of 95%.

In apparatus and method for waste treatment by pyrolysis, treated waste is flushed through a grid (18) to trap recyclable material in the pyrolysis chamber (24). Pyrolysis is carried out at a temperature of from 400-700° C. and off-gases are dissolved in a solution in scrubber (13) for disposal in a water course. Water is introduced into the chamber as superheated steam via pipes (5) so as both to flush away treated material and clean the chamber. Recyclable waste is separated from non-recyclable by treating non-recyclable waste by pyrolysis, and flushing treated non-recyclable waste away through liquid exhaust (8). Apparatus is made as a modular, free-standing unit and comprises plugs for connection to an electricity supply, to a water supply, and to a sewerage system (16) and has a chamber with a volume in the range 0.01-0.5 m.sup.3.

A flue gas additive is provided that includes both a nitrogenous component to reduce gas phase nitrogen oxides and a halogen-containing component to oxidize gas phase elemental mercury.

A boiler system is provided including: a boiler that burns fuel containing sulfur content, chlorine content, and water content to generate a combustion gas; a bagfilter that removes sulfur oxide; a denitration section that removes nitrogen oxide; a desulfurizing absorbent supply section that mixes a desulfurizing absorbent into the combustion gas on an upstream side of the bagfilter; and a reformer that mixes a denitrating reagent into the combustion gas on an upstream side of the denitration section, wherein the bagfilter performs dry desulfurization, and a temperature of the combustion gas passing through the bagfilter and flowing into the denitration section is higher than 200° C. and 350° C. or lower, and the combustion gas from which the sulfur oxide has been removed by the bagfilter flows into the denitration section without being heated on the upstream side of the denitration section.

A boiler system is provided including: a boiler that burns fuel containing sulfur content, chlorine content, and water content to generate a combustion gas; a bagfilter that removes sulfur oxide; a denitration section that removes nitrogen oxide; a desulfurizing absorbent supply section that mixes a desulfurizing absorbent into the combustion gas on an upstream side of the bagfilter; and a reformer that mixes a denitrating reagent into the combustion gas on an upstream side of the denitration section, wherein the bagfilter performs dry desulfurization, and a temperature of the combustion gas passing through the bagfilter and flowing into the denitration section is higher than 200° C. and 350° C. or lower, and the combustion gas from which the sulfur oxide has been removed by the bagfilter flows into the denitration section without being heated on the upstream side of the denitration section.

A system comprising a collocated thermal plant, water source, CO.sub.2 source and biomass growth module is disclosed. A method of improving the environment by utilizing the system is disclosed.

A system comprising a collocated thermal plant, water source, CO.sub.2 source and biomass growth module is disclosed. A method of improving the environment by utilizing the system is disclosed.

The present disclosure is directed to the use of elemental or speciated iodine and bromine to control total mercury emissions.

The present disclosure is directed to the use of elemental or speciated iodine and bromine to control total mercury emissions.