Waste Recovery Technologies

The context

The disposal of some waste such as:
• sewage sludge, of both organic and inorganic matrix
• wet fraction of waste coming from canteens, restaurants, supermarkets, etc.
• waste from agri-food production
• cultivation waste
it constitutes an important expense item in the company balance sheet, with costs destined to grow over the years due to increasingly stringent industry regulations.
The presence of water in high quantities in these wastes – although variable according to the specificity of the process that generated the matrix – suggests the opportunity to remove this water. This allows to obtain a substantial reduction of the volumes disposed of or, in some cases, the possibility of re-use of the material obtained, providing for the recovery of material and / or energy.
This obviously requires the optimized use of energy (both electrical and / or thermal) to allow evaporation.
Equally important is to ensure an appropriate stabilization of the product obtained, in order to avoid the generation of odors, an aspect that is one of the most critical elements in the management of organic matrices.
All this at investment and management costs that ensure a quick return on the coherent investment and with maximum simplification of the authorization procedures.

The proposal

THEMIS owns an innovative technology operating in the field of waste treatment, mainly but not exclusively with an organic matrix, whose efficiency and speed make it unique in its kind.
The innovative technology represents an advanced solution in the treatment of waste and animal dejections, the same guarantees in a short time the drastic volumetric reduction of the product, the stabilization of the same and the relative reuse, allowing the reduction of the specific cost and the total elimination of polluting emissions.
The extraordinary technological highlight is represented by the possibility of using a variety of thermal vectors (hot water, condensation returns of the steam lines) that can be used even at low temperatures.
In this way it is possible to exploit at practically no cost enthalpy queues otherwise dispersed and to access the reward mechanisms provided for by the Community and national regulations aimed at encouraging technological innovation and energy saving.

Themis WRT Technology

The WRT system, patented and built entirely at our Legnano site, allows the evaporation of water to reduce the moisture present in the organic waste matrix up to the achievement of dry contents even higher than 90 – 95%, thus determining a weight reduction of 3 to 6 times compared to the initial product, all at low temperature and in a short time. The proposed process allows to obtain a substantial reduction of the volumes disposed of and the reuse of water in the waste in the industrial process and the reuse of the dry material obtained as thermal energy, fertilizer or as a by-product of processing.

The WRT system ensures an appropriate stabilization of the product obtained, thus avoiding the generation of bad smells, an aspect that is one of the most critical elements in waste management and using a low quantity of energy for the volumetric reduction. The use of consolidated technology has investment and management costs that ensure a quick return on investment.

Absence of administrative procedures for installation authorization

The plant is configured as one (or more) skid that requires the customer to make electrical / mechanical / pneumatic connections in / out and an installation covered platform.

Often the installation of other plants “stops” for bureaucratic reasons, linked to the procedures of integrated environmental authorizations to which companies are subject. For example, the installation of a belt dryer due to the significant emissions into the atmosphere requires an update of the current authorization by the company. This means long and expensive procedures and “too much involvement” of the company in activities that do not constitute the core business.

The solution proposed by THEMIS intervenes on a reduction of the output waste stream, has no emissions into the atmosphere and is therefore configurable as an “improvement action” by companies, not subject to authorization procedures or – in the worst case – subject to simple acknowledgment by the local administration, competent in the matter.

Themis LAB

THEMIS has an internal research and development laboratory able to offer a complete technical service starting from the analysis of each single matrix and ending with the processing of the performance data related to the treatment with our WRT system.

Themis LAB specializes in carrying out specific tests and analyzes of waste to be treated with WRT technology and specifically performs the following activities:
• Technical productive analysis.
• Analysis of energy consumption.
• Quantitative analysis of the waste to be treated.
• Qualitative analysis of the waste to be treated.
• Development of technical tests on different waste matrices.

Themis Chemicals

Themis LAB is active in the creation and production of new generation chemical additives that improve the yield of biological processes necessary for the treatment of wastewater or generic organic of matrix materials.

Production is focused on the following sectors:
• Reclamation of contaminated sites: treatment of contaminated land reclamation (e.g. from hydrocarbons, PAHs, chlorides etc.) through non-GMO enzymes and micro-organisms that can be used on the ground, in order to accelerate the degradation reactions of pollutants and recover the original use of land.
• Purification: improvement of the efficiency of the purifier, reduction of operating costs and optimization of purification processes.
• Landfills: design and construction of automatic spraying systems on the poolside with consequent reduction of odorous emissions, production and polluting load of the leachate.
• Sanitation of waste-collecting vehicles: reduction of bad-smelling emissions of vehicles dedicated to the transportation of waste.
• Reclamation and deodorizing of the waste collection bins: the treatment minimizes the odorous emissions coming from the bins and checks for the presence of pathogenic germs due to the presence of waste.
• Biological treatment: treatment to reduce the smelly emissions, the polluting load and therefore the environmental impact in large communities, hospitals, nursing homes, schools, fruit and vegetable markets, restaurants, slaughterhouses, industrial plants and sports facilities.

Technology benefit

The proposed solution offers the following advantages:
• Total elimination of emissions into the atmosphere.
• Better handling of the product.
• Sanitization and stabilization of the product.
• Reuse of water present in waste in the industrial process.
• Reuse of the final dry product as thermal energy, fertilizer or as a by-product of processing.
• Drastic reduction in the cost of waste disposal.
• Easy installation with plug & play logic.
• Remote control of each process parameter.

Waste treatment

This technology allows a simplified management of waste and processing by-products such as:
• Sewage sludge, both organic and inorganic matrix.
• Industrial sludge.
• Organic fraction of solid urban waste.
• Waste from agro-food production.
• Wastes from cultivation.
• Food production waste.
• Production waste from anaerobic biodigestion.
• Organic matrix waste.
• Anaerobic digestate.

Application sectors

The proposed technology provides the possibility to treat different organic matrices in the following sectors:
• Tanning.
• Chemist.
• Pharmaceutical.
• Metallurgical.
• Nuclear.
• Food.
• Textiles.
• Oil.
• Cosmetic.
• Energy production – anaerobic biodigestion.
• Livestock.