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composting remediation Applications

  • Food Waste Recycling, Reduction or Disposal Systems for Mining Oil & Gas Exploration

    Oil and Gas Pipeline Labour Camps: With applications across Turkey, Azerbaijan and the former Russian State of Georgia, Tidy Planet are suppliers to 7 different locations for large scale equipment to generate energy from the food wastes at these 400-2000 person sites. With the sites needing a solution that prevents waste being backhauled many miles to registered facilities, having a robust unit on hand that generates the heating and hot water for the kitchens, shower block and laundry is ideal. The Dragon is a scalable solution and can be provided for sites with 200-10,000 staff on site. •Remote Mines & Mine Labour: Treating food wastes at source in remote applications where landfill or uncontrolled dumping of wastes is no longer permitted, on site Rocket composting to allow the use of a composted end product for land remediation is often chosen. Otherwise as with oil & gas the Dragon food waste / energy system a preferred alternative providing a simple method of energy generation

    By Tidy Planet Limited based in Macclesfield, UNITED KINGDOM.

  • Sulfide Oxidation with Hydrogen Peroxide (H2O2)

    Sulfide Odor Control Sulfide is found throughout the environment as a result of both natural and industrial processes. Most sulfide found in nature was produced biologically (under anaerobic conditions) and occurs as free hydrogen sulfide (H2S) - characterized by its rotten egg odor. We are most likely to encounter biogenic H2S in sour groundwaters, swamps and marshes, natural gas deposits, and sewage collection/treatment systems. Manmade sources of H2S typically occur as a result of natural materials containing sulfur (e.g., coal, gas and oil) being refined into industrial products. For a variety of reasons - aesthetics (odor control), health (toxicity), ecological (oxygen depletion in receiving waters), and economic (corrosion of equipment and infrastructure) - sulfide laden wastewaters must be handled carefully and remediated before they can be released to the environment. Typical discharge limits for sulfide are < 1 mg/L. Sulfide Treatment Alternatives There are dozens of alternatives for treating sulfide laden waters, ranging from simple air stripping (for the low levels present in groundwaters) to elaborate sulfur recovery plants (used to treat several tons per day at refineries and coal burning power plants). There are processes based on biology (using compost filters, scrubbing media, or inhibition/disinfection), chemistry (oxidation, precipitation, absorption, and combination), and physics (adsorption, volatilization, and incineration). Each process occupies a niche which is often defined by the scale and continuity of treatment, whether the sulfide is in solution or is a gas, the concentration of sulfide involved, and the disposition of the sulfide containing medium. However, for reasons relating to convenience and flexibility, chemical oxidation (using hydrogen peroxide) continues to grow in its scope of application. Treatment with Hydrogen Peroxide While other peroxygens such as permonosulfuric (Caro’s) acid, peracetic acid, and persulfates will oxidize sulfide, their use for this application is overkill. Hydrogen peroxide (H2O2) is considerably simpler and more cost-effective. H2O2 may control sulfides in two ways, depending on the application: Prevention - by providing dissolved oxygen which inhibits the septic conditions which lead to biological sulfide formation; and Destruction - by oxidizing sulfide to elemental sulfur or sulfate ion.

    By USP Technologies based in Atlanta, GEORGIA (US) (USA).

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