Sustec is the Dutch supplier and contractor of the patented TurboTec® Continuous Thermal Hydrolysis Process (cTHP) for sludge and biomass to enhance the biogas production in the anaerobic digestion. The world's first continuous full scale plants have been commissioned in 2014 in the Netherlands with capacities of up to 13,000 tDS/a. The process includes the novel sludge mixing-separation step, which facilitates efficient heat recovery and enables further energy recovery in heat exchangers. The continuous TurboTec® process, has in comparison to conventional batch-system a 10-15% lower investment cost, while their operating costs are more than 60% higher. The NutriTec® process is a unique technology for recovering N P by struvite precipitation and membrane ammonia stripping producing ammonium sulphate, of which both are used as fertilisers. Sustec is interested to get in contact with interested clients and end-users, but especially also strategic partners.
Sustec realizes technologies for sustainable solutions in the field of handling waste streams. It involves energy production, the recovery of raw materials and nutrients and the purification of water. Sustec offers consultancy services, laboratory and pilot testing, design and realisation of full scale installations. In addition, Sustec can also operate the installation management at distance.
Biobased economySustec focuses on projects in the field of sustainable production of energy and raw materials (biobased economy). Sustec offers consultancy services, research and development, design, realization, finance, and operations on projects on sustainable energy and production of raw materials.
It is the ambition of Sustec to become the best private enterprise in the market of the production of sustainable energy and raw materials. Entrepreneurship, professionalism and integrity are the main values of Sustec. These three values will result in reliability and excellent projects and services.
Sustec embraces the 'Biobased Economy' concept. That concept deals with the transition from an economy that runs on fossil raw materials to an economy that runs on biomass as raw material: from 'fossil based' to 'biobased'. In a biobased economy biomass is used for non-food applications.
Sustec works according to the one-stop shopprinciple. That means that a project of Sustec concept development to realization and operation can perform and accompany. Sustec has received the certificate of safety management system (VCA **). By the end of 2013 Sustec will be ISO9001 qualified.
Sustec recovers energy and raw materials from waste streams
Sustec is active in four markets: wastewater treatment plants, industry, waste sector and agro sector. These markets produce waste streams. Sustec offers several technologies to recover raw materials and energy from waste streams.
Waste water treatment plants
Sewage purification takes a lot of energy. At a WWTP is consumed annually net 20 to 30 kWh per unit of pollution of energy. While this waste water contains a potential of 130 kWh per unit of pollution per year of chemical energy. The Dutch sewage managers take initiatives to make the plants more energy-efficient or even energy producing (the Energy factory). This correponds to one of the objectives to improve efficiency with 30% in 15 years, concluded by the sector purification management. Sustec has developed a new technology: TurboTec . After testing and piloting TurboTec, the first installation is realized at Venlo WWTP.
Sustainability plays an increasing role in the industry. Sustec offers unique technology to handle industrial waste streams such as waste water, sludge and organic residues in a sustainable way.
Sustainability plays an increasing role in waste processing. Sustec offers unique technologies to process organic waste water in a sustainable way, such as TurboTec, NutriTec, fermentation and composting.
In the agricultural sector the sustainable processing of manure is becoming increasingly important. Sustec is working on various initiatives to convert manure in biofuel and manure replacer by the combination of thermal hydrolysis, fermentation and nutrient recovery.
In addition to the processing of manure, interest is increasing in the processing of other organic residuals in a sustainable way. For example straw, foliage and clippings.
Sustec develops and delivers a wide range of technologies for the sustainable processing of waste streams and waste water. Sustec is very experienced in the area of hydrolysis of biomass, anaerobic and aerobic technology, biomass fermentation, nutrient recovery and membrane filtration. Specific technologies can be applied for each waste stream.
Everybody wants clean surface water. The WWTP purifies domestic waste water to meet with requirements. Also hormones and medications can be filtered from water with FilTec® technology. In addition, you can regain energy and nutrients (nitrogen and phosphate) from waste water by the FermaTec ® technology.
Domestic waste water contains a lot of nutrients (nitrogen and phosphate = N&P). To meet with requirements the WWTP have an interest in a N&P content as low as possible. The N&P you regain from waste water, is a potential source of income in the form of fertilizers struvite and ammonia. The NutriTec® technology realizes this.
Processing sludge is expensive. You want to retrieve as much water as possible from sludge. So that a dry sludge cake remains for incineration. With the thermal hydrolysis of the TurboTec I ® technology the proces of fermentation and sludge dewatering is better. This produces 15-40% more biogas and the dewatering increases with 30-40%.
If the WWTP has more capacity than necessary for its own sludge fermentation, you can digest biomass from other parties. With the TurboTec I® technology co-fermentation is interesting because that directly recovers more energy and therefore brings more money. In this process you digest internal slurry and external supplied biomass into biogas. This produces sustainable energy for own use or supply to the net.
The industry is faced with sharpened discharge standards. New technologies make reuse of treated industrial waste water possible. Depending on the type of waste water and pollution you are able to purify industrial waste water with FermaTec, FilTec and NutriTec technologies. After this treatment the waste water can be reused or discharged.
Industrial waste water contains not only nutrients (nitrogen and phosphate = N&P) but also raw materials. The recovery and reuse of raw materials and can be interesting for the process. For the recovery of nutrients you can use NutriTec technology. For the recovery of raw materials Sustec offers additional technologies.
Processing sludge is expensive. So you want to retrieve as much water as possible from sludge. So that a dry sludge cake remains for incineration. With the thermal hydrolysis of the TurboTec Itechnology the proces of fermentation and sludge dewatering is better. This produces 15-40% more biogas and the dewatering increases with 30-40%.
Industries produce organic waste streams. By fermenting these residual flows, you can generate sustainable energy (biogas), making CO2 credits and costs as low as possible. Sustec can deliver Fermentation together with sludge digestion (Turbotec I), for processing these organic waste streams into biogases.
Processing organic waste produces heavily polluted waste water in the form of leachate water. You want to digest this so that it decreases in size and is suitable for incineration. In addition, you can convert organic waste into methane that produces sustainable energy. The FermaTec and NutriTec technologies are suitable for this.
Leachate water resulting from the processing of organic waste is generally rich with nutrients. With the unique NutriTec technology you can seperate these nutrients from the leachate water and regain them as fertiliser.
With sludge (biological waste) and slurries (organic waste mixed with water) you can produce sustainable energy (biogas). With the thermal hydrolysis of the TurboTec I technology the proces of fermentation and sludge dewatering is better. This produces 30-40% more biogas and the dewatering increases with 30-40%. This gives you more return.
New technologies make it possible to produce energy from even relatively dry biomass. You can apply thermal hydrolysis and fermentation also to greenwaste, roadside grass clippings and straw. TurboTec II provides the technology that lets you digest dry biomass discontinuous in a batch process.
The costs of manure disposal are high for live stock farmers. The discharge of thin manure fraction means lots of pollution units. When processing manure you purify the water that you have to discharge. With Filtec® technology you are able to do that. In addition, manure contains much nitrogen and phosphate (nutrients) that can be retrieved with NutriTec® technology.
The recovery of nutrients (nitrogen and phosphate = N&P) is the main goal at manure processing. The N&P you regain from manure, is a potential source of income in the form of vultures or manure pellets for own use or sale. With the NutriTec® technology you can regain N&P.
Regulation stipulates that manure must be sterile when you deliver it. That means that it is treated at certain temperature and pressure before you use it for the land or bring it to the market. Slurry behaves like sludge, it is pumpable. Manure can be treated like sludge with the TurboTec I® technology and in addition, yield energy (biogas).
You can't pump dry biomass, such as foliage and straw, in a fermentor. If you mix dry biomass with liquid manure you can use it as a co-fermentation substrate. With the thermal hydrolysis of TurboTec® you can obtain a higher biogas yield in a co-fermentation process.