Presentation on theme: "AQUATEST a.s. consulting and engineering services Environment Water management Recycling lines and waste Remediation and supervision Accredited environmental."— Presentation transcript:
AQUATEST a.s. consulting and engineering services Environment Water management Recycling lines and waste Remediation and supervision Accredited environmental laboratory
AQUATEST a.s. consulting and engineering services Regional working sites Operation in EUROPE
AQUATEST a.s. basic information of the company 700 orders a year 10 mil EUR annual average turnover 210 average number of employees 20 countries, in which operation has taken place 14 regional agencies in the CR 3 international joint ventures ISO 9001 ISO OHSAS certified integrated management system
REMEDIATION w ORKS Remediation of ground water, soil and construction substances is the most significant operation of the company that disposes of all technical and material means necessary for complex provision of remediation works, from their designing, realisation (installation and operation of remediation technologies), assessment, and supervision of their implementation. Remediation on works focus on removing wide spectrum of decontamination – chlorinated carbohydrates, petroleum carbohydrates, and other organic substances, heavy metals, cyanides, et al.
S E R V I C E S O F F E R E D Remediation of ground water, soil, and construction substances Complex provision of remediation works, from designing, realisation (installation and operation of remediation technologies), assessment, and supervision of their implementation. Experience from remediation of chlorinated carbohydrates, petroleum carbohydrates, and other organic substances, heavy metals, cyanides, et al. Chemopetrol Litvínov Spolchemie ČeR Kralupy nad Vltavou OSTRAMO
Monitoring natural or supported attenuation For quality and accurate monitoring of remediation works, AQUATEST a.s. is equipped with a certified laboratory, including trained samplers. Laboratory provides following services: sampling field measuring chemical, microbiological, and radiological analyses assessment of dangerous waste features consulting accident service
Water purification plants ChČOV Laguny Ostramo : technology design, operation Plant capacity: up to 18 l/s Function: - Separation of free PC (petroleum carbohydrates) base - Adsorption of organic substances on active coal - Precipitation of heavy metals - Separation and filtration of sludge
ChČOV Spolchemie : Technology design, operation
Station capacity: 100 m 3 /month in batches Function:- Multi-level precipitation of heavy metals - Separation and filtration of sludge Neutralizing station : - Technology design - Equipment supply
Modular units for water purification Unit capacity: up to 2 l/s Function:- Precipitation - Neutralizing - Aerating - Ox/Redox reaction - Sludge separation - Sludge filtration Modular (container) unit of mine water The whole technology is controlled by logic controller.
Modular remediation technologies Modification of physical - chemical parameters Filtration through active coal Dosing reagents, incl. programmable automated machines for the control of chemical and physical parameters of pumped water System of filtration and restoration of filters with active coal Certified by Engineering Testing Institute.
Aerating Stripping Cascade of actively mixed aerated tanks Capacity: up to 6.6 l/s Set of stripping columns to remove volatile substances and filters of air substance Capacity: up to 5 l/s Certified by Engineering Testing Institute.
Decomposition decay directly underground (biological, chemical, physical, nano-particles) Design, completing, optimisation of automatic dosing complexes to support IN-SITU decontaminations. Biodegrading Soil leaching Separation of contamination and immobilisation
Venting Controlled soil steaming Fully automated steam generators using light fuel oils or natural gas Capacity: up to 600 kg of steam/hr Powerful vacuum pumps for soil air exhaustion, including contaminant collection on filters with active coal
In-situ chemical oxidation - ISCO Very fast developing technology of water and soil remediation New proven and commercially used methods Most frequently used oxidation agents: –unsaturated zone: H 2 O 2 and ozone –saturated zone: H 2 O 2 and permanganate Relatively simple methods in terms of chemistry and use
Example of KMnO 4 preparation and dosing system Bezprašný, fungující na princi
Biologically supported reductive dehalogenation Biologically degradable substrate is fermented by anaerobic micro-organisms => releases H2 H2 is a donor of electron for full dehalogenation of chlorinated ethylenes. Possible alternate substrates: lactic acid, whey, molasses, vegetable oils, chitin, sugar, ethanol, etc.
Example of the dosing system of biodegradable substrate Semi-automatic dosing system of concentrated agent Pre-treatment and deoxidizing of water, Dosing, mixing, infiltration control
Chemical in-situ reduction of elementary iron nano-particle Under strong reduction conditions, water molecule may be reduced: Aliphatic ClUs (e.g. TCE) are reduced using similar method: It was laboratory-confirmed that > 70 types of substances may be reduced (Zhang, 2003): TCE, PCE, DDT, PCB, PCM, PCP, lindan, nitrates, Pb, Hg, Ni, Cd, Cr, As, TNT, U……
Example of the nano-particles application system Mobile equipment Semi-automatic operation Field preparation of suspension from powdered material Fresh material with variable surface finish
AQUATEST a.s. consulting and engineering services Geologická 4, Praha 5 - Barrandov Technical Support Division tel.: fax: Areál Kovohutí, Mníšek pod Brdy