Opportunities Identified in the 2015 Pilot

The following opportunities were identified between project participants in the summer 2015 pilot. The majority of these transactions originated from recommendations made by our project team through the Materials Marketplace software. Environmental (calculated using Eco-LCA) and economic impact metrics are estimated - actual numbers may vary pending logistics and final quantity confirmations.

sand reuse: by-product silica sand and ground silica

Quantity Available: 4,200 tons/year

Opportunity: Silica sand and ground silica are important feedstocks for sand production. Two companies are exploring the reuse of a silica by-product to to replace virgin feedstock.

Environmental Impact: 1,110 MT CO2e avoided; 4,200 tons/year diverted from landfill

Economic Impact: $172,000 per year in disposal savings and value creation


co-processing: cleaning solvents

Quantity Available: 500 tons/year
    
Opportunity: These cleaning solvents meet the minimum calorific value requirements for cement kiln co-processing. Co-processing is a secure form of waste management that recovers both energy and mineral components from waste for use as fuel, and for product additives used in manufacturing processes.
    
Environmental Impact: 787 MT CO2e avoided; 500 tons/year diverted from incineration or alternative disposal

Economic Impact: $700,000 per year in disposal savings and value creation


sand additive: bauxite residue

Quantity Available: 2 million tons/year

Opportunity: One participant is researching and testing the use of bauxite residue to replace virgin feedstock, or as an additive in sand production. Both opportunities are being explored, however the later is more likely to be feasible.    

Environmental Impact: 14,400 MT CO2e avoided if all 2 million tons can be diverted; 2 million tons/year diverted from storage and/or disposal    


co-processing: bauxite residue

Quantity Available: 2 million tons/year
    
Opportunity: Bauxite residue does not have as high of a calorific value as other materials typically used in cement kiln co-processing, however the material composition is similar. Co-processing may be able to recover a small amount of energy, but more importantly, the mineral components in the material.
    
Environmental Impact: 14,400 MT CO2e avoided if all 2 million tons can be diverted; 2 million tons/year diverted from storage and/or disposal

Economic Impact: $40 million per year in disposal/storage savings and value creation


constructed wetlands: bauxite residue

Quantity Available: 2 million tons/year    

Opportunity: Two participants are currently exploring the use of bauxite residue in a constructed wetland wastewater treatment system to remove phosphorous.    

Environmental Impact: 14,400 MT CO2e avoided if all 2 million tons can be diverted; 2 million tons/year diverted from storage and/or disposal

Economic Impact: TBD  


co-processing: aqueous methanol

Quantity Available: 1,100 tons/year  

Opportunity: Aqueous Methanol does meet the minimum calorific value requirements for cement kiln co-processing. Co-processing is a secure form of waste management that recovers both energy and mineral components from waste for use as fuel, and for product additives used in manufacturing processes.    

Environmental Impact: 1,731 MT CO2e avoided; 1,100 tons/year diverted

Economic Impact: $1.5 million per year in disposal savings and value creation    


co-processing: drilling mud

Quantity Available: 5,000 tons/month

Opportunity: In certain situations, oil well drilling mud meets the minimum calorific value requirements for cement kiln co-processing, however transportation of the material presents a challenge. Co-processing is a secure form of waste management that recovers both energy and mineral components from waste for use as fuel, and for product additives used in manufacturing processes.    

Environmental Impact: TBD    

Economic Impact: TBD       


chemical reuse: hcl by-products 

Quantity Available: TBD

Opportunity: Bauxite residue is high in alkalinity, and needs to be neutralized by acids before being stored or disposed of. Acidic by-product streams available in the marketplace may prove to be a good source after testing.

Environmental Impact: TBD

Economic Impact: TBD    


container reconditioning: totes and drums

Quantity Available: 83 tons/year  

Opportunity: One participant collects, cleans, reshapes, reconditions, remanufactures and tests industrial drums and intermediate bulk containers (IBCs) for reuse and recycling, extending the life of the products and responsibly recycling their component materials at the end of their life cycles.    

Environmental Impact: 390 MT CO2e avoided; 83 tons/year diverted from landfill  

Economic Impact: $32,700 per year in disposal savings and value creation


Past case studies from other US BCSD Projects

Spent Caustic reuse

A large refinery in Washington produced spent caustic soda as a by-product, which was shipped via railcars to a waste facility in Texas. Shipping costs were high, and there was increased risk of a release from shipping the caustic from WA to Texas. If a way to beneficially reuse the caustic in the Northwest could be found, shipping costs and environmental risk would be reduced. Vendors were contacted regarding the possibility of trucking spent caustic soda to the pulp mills for reuse in their paper process. The beneficial reuse of spent caustic soda represents good environmental stewardship. It is beneficially used as feedstock in another manufacturing process, and the risk associated with transporting the product is reduced. The mill benefits from cost reductions associated with substituting spent caustic for fresh caustic, and the refinery benefits from reduced transportation costs.

Economic impact: cost savings resulted in the amount of approximately $400,000 per year


Polymer reuse

This polymer reuse case involves the reuse of off-spec polymers from one large chemical company's manufacturing operations for use to construct impermeable barrier floors in another’s manufacturing facilities. This reuse displaces the need for petrochemical feedstock necessary to manufacturing additional resources to produce impermeable concrete flooring.

Economic Impact: material and disposal cost savings are estimated to be $322,000 per year

Environmental Impact: 313 MTCO2E Avoided


Acetic Acid

This acetic acid case involves the use of acetic acid, a manufacturing by- product from large chemical company, for use to manufacture acetates for descaling operations. Acetic acid recycling displaces the need for petrochemical feedstock necessary for manufacturing acetates.

Economic Impact: material and disposal cost savings are estimated to be $1,430,000 per year

Environmental Impact: 1,408 MTCO2E Avoided