Waste Incinerator

Flue Gas Treatment

High temperature waste incinerators and high-temperature sludge treatment (850 to 1000°C) produce concentrated flue gases that are highly charged with Sulphur Oxides (SOx), Chloric Acids (HCL), Hydrofluoric Acids (HF), Dioxins/Furans (PCDD/PCDF) and Heavy Metals. We therefore offer injection of several reagents, in powder form, according to our customer’s needs in order to eliminate, by agglomerating to these pollutants. This treatment method can be applied to other areas than waste incinerators.

 

SCCM ALP by its history, ALP PROCESS is a reference for the number of smoke treatments. They are referenced by the world leaders in smoke treatment.

 

Treatment of Sulphur Oxides (SO2 and SO3) and Hydrochloric (HCL) and Hydrofluoric (HF) Acids

In order to reduce the level of sulphur oxides, hydrochloric and hydrofluoric acids we inject powdered reagents into the flue gas ducts upstream of the bag filter. We can use several products:

  • Sodium bicarbonate (NaHCO3) is more efficient on sulphur oxides
  • Slaked lime (Ca(HO)3) is more suitable for hydrochloric acids

We propose complete sets :

  • Storage (Silo or Big Bag)
  • Extractor (devourer)
  • Grinding
  • Dosing (Spiral or auger)
  • Pneumatic transport and injection directly into ducts thanks to our injectors

A flow range from 0.05 m3/h up to 12 m3/h with precise dosing. Possibility to feed up to 4 lines with a single silo. Dosage regulation is based on the data received from the fume analyzer. This system can be installed on a new treatment or as a complement to an existing treatment that no longer meets the standards or is subject to pollution peaks.

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Our Achievements

Veolia
Product :
Pre-ground sodium bicarbonate SB/03 from Solvay
Issue :
Smoke treatment with pre-crushed BICAR
Solution :
Replacement of a semi-wet treatment (milk of lime) by a dry treatment with pre-crushed bicar. Cleaning of the 2 existing silos and modification of the outlet cones in order to use them for the pre-crushed sodium bicarbonate. Installation of an anti-bridging device and 3 outlet screws on each silo. Flow rate: 40 to 800 kg/h per screw. Injection made by pneumatic transport using a fan and polyurethane piping.
Market :
Incinerator SMEDAR (ROUEN)
Sitcom Côte Sud des Landes
Product :
Sodium bicarbonate
Issue :
Smoke treatments with sodium bicarbonate to grind
Solution :
Installation of an unblocker at the silo outlet (Silo not included in the scope of supply) with two transfer screws. At the screw outlet we have installed 2 grinders, which will reduce the granulometry of the bicarbonate and increase its efficiency close to the pollutants. Flow rate: 100 to 850 kg/h. Two stainless steel pipes for pneumatic transport and injection.
Market :
Incinerator (BENESSE-MAREMNE)
Sitom Bourgoin Jallieu
Product :
Slaked lime
Issue :
Lime fume treatments
Solution :
Against pollution peaks: installation of a 42m2 slaked lime silo equipped with 2 dosing screws and 2 pneumatic transport lines (1 common silo, 1 screw and 1 pneumatic transport per line) Complementary solution installed by integrating existing installations (milk of lime treatment) Injection of slaked lime into the smoke ducts at the reactor inlet. Delivery of an electrical cabinet that allows automatic injection of the reagent to prevent pollution thresholds from being exceeded. Flow rate: 50 to 750 Kg/h per line.
Market :
Incinerator
SICA DES SABLES – La Réunion
Product :
Sodium bicarbonate
Issue :
STAND Smoke treatment
Solution :
Big bag unloader chassis with a capacity of 1m3 or 2m3 with vibrating table for emptying and electric hoist in option. Intermediate storage hopper with access door for watertight unloading. At the outlet, a dosing screw and a crusher for the bicarbonate. For injection, a fan with stainless steel piping. Flow management, by our electrical cabinet. Flow rate: 10 to 200 kg/hour
Market :
Animal incinerator

Grinding

When using sodium bicarbonate (NaHCO3), the particle size must be taken into account. Indeed, the finer the product, the better its efficiency on pollutants. Our company offers industrial grinders designed by the company OFFICINA 2000, of which we are the official reseller for France, specialising in the grinding of sodium bicarbonate. We have two types of mills, compact grinder and selector grinder.

Compact grinder allows to have :

  • Small flow rates
  • Reduced space requirements

Selector grinder allows :

  • Regulate the granulometry
  • Achieving very fine grain sizes

The grinding unit is equipped with a metering screw and a transport fan, which allows having a common unit in a small space. Our grinders are mounted with a pneumatic injection system of glycol, an additive that eliminates clogging of the product. We also offer soundproofing boxes to reduce the noise level of the grinder.

TEST IT: If you wish to test the sodium bicarbonate we can offer you a complete dosing and grinding stand for rent.

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Our Achievements

Product :
Grinder 2K
Issue :
Desire of new facilities
Solution :
Grinder equipped with dosing screws (possibility of equipping with scales to monitor consumption), a grinding chamber with reinforced armour and hammers, a selector to improve the fineness of the granulometry and a fan to transport the ground bicarbonate.
Market :
Incinerator, industrial, mining, chemical, pharmaceutical, food, etc…
Product :
Compact grinder
Issue :
Desire of new facilities
Solution :
Grinder equipped with dosing screws (possibility of equipping with scales to monitor consumption), a grinding chamber with reinforced armour and hammers, and a fan for transporting the ground bicarbonate
Market :
Incinerator, industrial, mining, chemical, pharmaceutical, food, etc…
Product :
Stand + Grinder
Issue :
Desire of new facilities
Solution :
In order to carry out tests on smoke treatment we offer the rental of a complete stand for storage, dosing, grinding and transport of bicarbonate. Equipment: big bag unloader, Transfer screw, Grinder, Fan, Injection pipework, Glycol injection, Electrical cabinet.
Market :
Incinerator, industrial, mining, chemical, pharmaceutical, food, etc…

Treatment of dioxins/furans and heavy metals

In addition to acids and sulphur oxides, we also find dioxins/furans (PCDD/PCDF) and heavy metals in the flue gases from incinerators. For this, several reagents can be used in addition to Sodium Bicarbonate and Lime:

 

Activated Carbon

  • Lignite Coke
  • Natural Mineral Substance (Minsorb, Dioxorb…) 

We offer complete sets:

  • Storage (Silo or Big Bag)
  • Extractor (devourer)
  • Grinding
  • Dosing (Spiral or auger)
  • Pneumatic transport and injection directly into ducts thanks to our injectors
  • Gravity injection

As the quantity to be injected is much smaller than bicarbonate or Lime, SCCM ALP propose several microdosers with flow rates ranging from 0.002 m3/h to 1 m3/h. In some applications the demand for SOx, HCL and HF lowering is low which allows us to propose the mixture of Lime and Minsorb in order to avoid having two sets of reagent injection.

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Our Achievements

INOVA
Product :
Activated carbon
Issue :
Injection Activated Carbon
Solution :
Installation of a silo extractor with two transfer screws. These two screws each feed a weighed micro-doser, for consumption monitoring. The activated carbon is injected gravitationally into the pneumatic sodium bicarbonate transport line downstream of the mill thanks to an injector and a rotary sluice. For the activated carbon we offer ATEX dust Zone 21 or 22 according to the risk analysis defined by the customer. Micro-doser flow rate: 1 to 8 Kg/h
Market :
Incinerator (BENESSE MARENNE)
CIDEME
Product :
DIOXORB
Issue :
Storage + Dioxorb Injection
Solution :
Installation of 2 new dioxorb injection lines in addition to the existing sodium bicarbonate treatment. 2 Weighing polyester silos of 15m3, direct transport of the product by gravity into the 2 micro-dosers. At the outlet, a lock and a gearbox to finally inject the dioxorb downstream of the mill into the pneumatic transport. Flow rate: 1 to 15 kg/h. With this product we are not in ATEX Zone.
Market :
Incinerator (Douchy-les-Mines)
Veolia Water
Product :
Unloader + Active Carbon Injection
Issue :
Injection of activated carbon
Solution :
For wastewater treatment, we delivered a complete reagent injection set (sodium bicarbonate and activated carbon) to lower the pollutant from their sludge incinerator. For the activated carbon: supply of a 1m3 Big Bag unloader with electric hoist. A vibrating table for emptying and a buffer hopper (capacity 1m3). Gravity feeding of our microdoser. Injection of activated carbon into the gravity pneumatic transport with a lock and an injector. (Possibility to manufacture in stainless steel on request). Flow rate : 1 to 10 kg/h
Market :
Water treatment, sludge incinerator
?
Product :
Lime + Minsorb
Issue :
Unloader + Injection Mixed Lime Minsorb
Solution :
Big bag unloader with a maximum capacity of 2000 Kg. Emptying by vibrating table, buffer hopper of 130 litres, access door to the big bag links. An unblocker to avoid any clogging. A dosing screw with a spiral. Pneumatic transfer of the product into the smoke duct upstream of the filter thanks to a fan. Flow rate: 1kg/h to 5kh/g
Market :
Metal recovery