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Paques develops and produces cost-effective water and gas purification systems using innovative biotechnology. | Business : | Manufacturer |
| Company name : | PAQUES BV | |
| Street : | T. De Boestraat 24, P.O. Box 52, (NL)8560 | |
| City : | AB Balk | |
| Website : | www.paques.nl/ | |
| E-mail : | info@paques.nl | |
| Phone : |  31 (0)514-60 85 00 | |
| Fax : | 31 (0)514-60 33 42 | |
| Office Type : | Head office | |
| Country Name : | Netherlands | |
Paques builds world's largest ANAMMOX® wastewater treatment plant for ammonium removal in ChinaPaques Environmental Technology Shanghai, a sister company of Paques bv in Balk, the Netherlands, has reached an agreement for the design and supply of the largest effluent treatment plant for ammonium removal in the history of the company. The ANAMMOX® process has a capacity for conversion of 11 tons of nitrogen per day. The size of the plant is almost ten times larger than the largest plant built so far. The water treatment will be supplied to the Meihua Group, a large Chinese producer of among others glutamate, starch and amino acids from maize.
The biological ANAMMOX® (ANaerobic AMMonium OXidation) process is a breakthrough in removing nitrogen from wastewater. ANAMMOX® is a sustainable and cost effective alternative for the conventional active sludge system. The process has been developed in association with Technical University Delft and Radboud University Nijmegen. The installation in China is the sixth full scale application of the technology. It concerns the first in China. This project is an important step in the further marketing of the ANAMMOX® process because of the size and its location.
The customer has chosen for a combination of ANAMMOX® and BIOPAQ®IC (anaerobic water treatment). An important difference with the conventional active sludge system is that for the conversion of nitrogen with the ANAMMOX® process no organic carbon is consumed. The ANAMMOX® - BIOPAQ®IC combination offer considerable advantages to the customer:
1. Biogas production
In this case, by using the BIOPAQ®IC, organic pollution present in the effluent can be converted to 4 million m3 biogas (methane) per year. The biogas is provided to the production process as fuel for heating.
2. CO2 emission reduction
By savings on methanol, energy and recovery of biogas, a saving of more than 10,000 ton CO2 is realised on an annual basis.
3. Lower capital outlay
The conversion of nitrogen and organic substance with the ANAMMOX® - BIOPAQ®IC process go much more efficiently with respect to the active sludge system. The total water treatment is for this reason 85% smaller, in total 90,000 m3 reactor volume will be saved.
4. Lower operational costs
Yearly 1,000 tons of methanol is saved. In addition the energy consumption is reduced and less surplus sludge is produced.
The ANAMMOX® process is widely applicable and can provide advantages in several industries for the treatment of effluent. Some examples are:
- Municipal effluent treatment (centrate from sludge digestion)
- Organic solid waste treatment (landfills, composting, digestion)
- Food industry
- (Petro) Chemical industry
- Metallurgical industry
- Mining industry
In the development and application of innovative environmental biotechnology Paques aims to be the marketleader. Paques contributes to the world in which we live through the worldwide introduction of our technology, which is based on sustainable and natural processes. In this way, we bridge the gap between economic progress and environmental responsibility, focusing at all times on the well-being of our employees and other stakeholders.
The future scarcity of fossil fuels and the expected influence of the greenhouse effect are enhancing the importance of renewable or green energy. Alongside solar, water and wind-driven technologies, biogas production from (renewable) organic resources is growing rapidly as a highly efficient, profitable and sustainable source of energy.
| BIODESOX® flue gas desulphurization SO2 removal from flue gases of power plants and metallurgical operations is standard in most countries. Paques offers you the BIODESOX® technology for SO2 removal. Essentially this is a regenerative bicarbonate scrubber with a proven efficiency of >95% (up to 99%) SO2 removal. Regenrtative means that the consumption of alkaline material is minimal. The regeneration takes place in a biotechnology-based process whereby the SO2 is converted into elemental sulfur. Sulphide is an intermediate compound. This makes it posisble to recover or to remove dissolved metals from process streams or effluents. The regeneration can be driven by a selection of energy sources like ethanol, hydrogen or concentrated dissolved organic waste streams. The combination of flue gas desulphurisation and effluent/waste water treatment makes this technology ideally suited to tackle multiple waste streams with one installation. The result is a very competitive overall solution for small and medium-size applications. Technology SO2 from the gas is absorbed in the scrubbing liquid in a scrubber. Several technologies can be applied for this (e.g. spray tower, reversed jet etc.) depending on process characteristics like gas flow and SO2 concentrations, and discharge requirements. Two different types of specialised, naturally occurring, bacteria convert the dissolved SO2 via sulphide into elemental sulphur. In this process the alkalinity is regenerated. The scrubbing liquid is recycled to the scrubber after separation of the elemental sulfur. The process produces a small bleed (size and composition depends on the energy source) and an elemental sulphur slurry or cake that can be processed further. Advantages: very efficient SO2 removal of up to 99%; Low consumption of alkaline material & low waste production due to regenerative process concept; Applicable for all SO2 concentrations; Product is hydrophillic (non-sticky) sulphur; Possibility to solve several problems with one installation; Process occurs under ambient conditions; Flexible, robust and proven process (over 15 years experience with full-scale installations); Comparable CapEx but lower OpEx compared to conventional systems; Applicable in all kinds of industry (Power generation, oil & gas, fermentation industry, metal processing industry) |
| BIOPAQ® IC With the development of high rate Internal Circulation (IC) reactors, Paques has created the opportunity for industries with limited available space to treat their effluent, and in addition, both noise and odour issues have been addressed. Anaerobic effluent treatment with efficiently designed BIOPAQ® IC-reactors has become a proven technology, with hundreds of examples worldwide in various industrial sectors. Advantages of the BIOPAQ® IC • production of consistent effluent qualities • compact, small, self regulating and highly efficient • production of ‘green’ energy-rich biogas • little biomass volume • a short hydraulic retention time • capable of dealing with high loading rates • use of biological alkalinity decreases customary neutralization costs • meets stringent requirements for odour emission, sludge production and purification grades • a complete range of models from standardized concepts • tailor made options for indoor as well as outdoor applications • wide-ranging application • short system start-up time • worldwide availability through network of licensees |
| BIOPAQ® UASB The Upflow Anaerobic Sludge Blanket (UASB) process is the most applied method for the biological treatment of industrial effluents. Paques has been applying the BIOPAQ® UASB technology for more than twenty years and has standardized the reactor into a modular system. Nearly four thousand BIOPAQ® modules are operating world-wide, treating 1,760,000 m3 of effluent per day. One module has a capacity equivalent to about 1 ton COD/d e.g. 15-20 m3/hr and can be used to configure any UASB reactor size to meet specific layout and capacity requirements. BIOPAQ® UASB technology is used to treat a large variety of industrial and municipal effluents, from food, beer and beverage to pulp & paper, chemical and municipal sewage. Advantages of the BIOPAQ® UASB reactor: • modular system • worldwide availability • corrosion-free design • ten-year guarantee • fully accessible for inspection and cleaning • closed system • no odor emissions • limited reactor height Working principle The success of the BIOPAQ® UASB reactor is based on the so-called three-phase separator, which enables the reactor to separate gas, water and sludge mixtures under high turbulence conditions. This allows for compact, cheaper designs. |
| THIOPAQ® gas desulphurization Many industries produce gas and air streams containing H2S. For reasons of health, safety and corrosion removal of H2S is required. Paques’ THIOPAQ® technology is the best method for H2S removal combining deep H2S removal, a very high reliability and availability, and low lifecycle cost. This bio-catalyzed process operates at ambient temperature and pressure, removes H2S highly efficiently and does not require expensive catalysts and chemicals. THIOPAQ® is the right solution for a reliable supply of clean biogas. The clean biogas can be used to produce electricity, CO2 and heat, or be used to replace natural gas in a boiler. The THIOPAQ® technology was originally developed for the purification of biogas produced during anaerobic waste water treatment. Similar gasses are biogas produced during solids digestion and landfill produced gas. Examples of successful application of the THIOPAQ® process include water treatment plants in paper mills, distilleries, municipal sludge digestion plants and chemical industries. Gas-flows from 50 to 3500 Nm3/h are treated all over the world. The pressure of these gases is close to atmospheric. The technology is also suitable for pressures upto 90 bar (Shell - Paques process). The biggest THIOPAQ® installation is capable of producing 14 tons of sulfur per day. Advantages of the THIOPAQ® • Simple process: only two process steps. • Safe process: No free H2S after absorber entrance. • No addition of air to the biogas. • Advanced process control gives tremendous flexibility and availability. • Low operational cost. • No fouling of the absorber by water loving biological sulfur particles. • Buffered scrubbing solution ensures deep removal of H2S. • Only waste stream is a small water stream containing harmless salts. • Very low maintenance requirements. • Over 15 years operating experience since first startup in 1993. • Over 100 references give peace of mind |
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