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Determining techniques used to reduce the impacts of pollution in a typical situation Introduction Treatment for air pollution Treatment for water pollution.

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Presentation on theme: "Determining techniques used to reduce the impacts of pollution in a typical situation Introduction Treatment for air pollution Treatment for water pollution."— Presentation transcript:

1 Determining techniques used to reduce the impacts of pollution in a typical situation Introduction Treatment for air pollution Treatment for water pollution Treatment for soil pollution Costs for pollution treatment Technical and economical evaluation for applying measures to reduce consumption AIR, WATER, SOIL Session 1: The origin and spreading of pollution Session 2: Evaluating and measuring the severity of pollutions Session 3: The techniques used to reduce the impact in a typical situation

2 When this is not possible, we will see which technical means are available, It is actually necessary to take into account as soon as possible the flow polluted in order to treat and purify it. Neglecting the management of the flow leads to contamination of the environment AIR, WATER, SOIL Introduction Session 3: The techniques used to reduce the impact in a typical situation Introduction Treatment for air pollution Treatment for water pollution Treatment for soil pollution Costs for pollution treatment The most efficient techniques consist of preventing a pollution from reappearing, In the 3 cases that interest us, we will see if it is possible to take action at the pollution source in order to avoid its reappearance. Quiz Key points Exercises

3 For each type of pollution concerning the atmosphere, different types of treatment can be applied. As for noise pollution, the impacts can be reduced by : Treatment for air pollution Diminuing the number of engins running, therefore reducing the number of sources. limiting the speed at which the engins run, the insenisty of noise may diminue confing the areas where the machines operating with sound proof materials isolating the sources when possible or by replacing the machines with less noisy ones isolant les sources Session 3: The techniques used to reduce the impact in a typical situation Introduction Treatment for air pollution Treatment for water pollution Treatment for soil pollution Costs for pollution treatment Quiz Key points Exercises AIR, WATER, SOIL

4 Air filters Vacuum hoods Treatment for air pollution For dust and volatile organic compounds (VOC), il is possible to install : Near to the source or area where the dust is produced. These installations have to be adapted to the working conditions (operater, production mode…) Protective clothing (masques, goggles) existe to avoid inhalation of vapors and solvants (see Module 5 « Prevention and protection of personnel »). Session 3: The techniques used to reduce the impact in a typical situation Introduction Treatment for air pollution Treatment for water pollution Treatment for soil pollution Costs for pollution treatment Quiz Key points Exercises AIR, WATER, SOIL

5 The divers canalisation conditions (pipe systems of production machines, water network) in order to prevent leaks from occuring The conditions of storing equipment (point cans, retention tanks…) The zones susceptible to contamination (uncovered storage zones, engin running space,…) and to absorption in to soil by rain water. In order to avoid polluting an area due to chemical leaks, it is important to survey : Treatment for water pollution Session 3: The techniques used to reduce the impact in a typical situation Introduction Treatment for air pollution Treatment for water pollution Treatment for soil pollution Costs for pollution treatment Quiz Key points Exercises AIR, WATER, SOIL

6 Collection from sewers on the site (or the sewer system for pretreatment of waste water) allow for the control of contaminated flows sending them towards the treatment unit. These treatment units could be simple filters or internal waterwater treatment plants (WWTP). If a WWTP is not on the site, the discharge could be sent towards the municipal WWTP with permission authorized by qualified services at the the town hall or by a water treatment agency. Treatment for water pollution Session 3: The techniques used to reduce the impact in a typical situation Introduction Treatment for air pollution Treatment for water pollution Treatment for soil pollution Costs for pollution treatment Quiz Key points Exercises AIR, WATER, SOIL

7 Treatment for water pollution Eau souillée PURDGING OF SLUDGE PHYSICO-CHEMICAL TREATMENT WASTE WATER EVACUATION DECANTATION PURDGING OF SLUDGE WATER ANALYSIS Session 3: The techniques used to reduce the impact in a typical situation Introduction Treatment for air pollution Treatment for water pollution Treatment for soil pollution Costs for pollution treatment Quiz Key points Exercises AIR, WATER, SOIL Contaminated water Disposal of dried sludge 3 decanting steps

8 Such equipment previously illustrated permet to diminue the pollution charge before the flow is disposed in the environment. For example if hydrocarbons are detected on the surface of the site, due to a gas or oil leak from a truck or canister), a hydrocarbon separator can be installed that takes up and treats the water generally before contamination. Treatment for water pollution Session 3: The techniques used to reduce the impact in a typical situation Introduction Treatment for air pollution Treatment for water pollution Treatment for soil pollution Costs for pollution treatment Quiz Key points Exercises AIR, WATER, SOIL

9 Cleaning water for the paint-mixing tanks can be reused in the production steps in its aqueous phase, which reduces only by 1% quality of the finished product. This method allows for the reduction of Cette technique permet de réduire : Treatment for water pollution Managing the flow of these waters allows to reduce the high treatment costs. the quantities of water consummed the quantities of contaminated water to treat. Session 3: The techniques used to reduce the impact in a typical situation Introduction Treatment for air pollution Treatment for water pollution Treatment for soil pollution Costs for pollution treatment Quiz Key points Exercises AIR, WATER, SOIL

10 Process water Cleaning water Stormwater or rain water Therefore, It is important to control the quality of the following types of discharge : It is necessary to control the quality of the runoff of water on the site because it could be charged with pollutants (see Session 1 of this Module) and spread thourghout the site, especially natural or artifical depressions are present. Treatment for water pollution Session 3: The techniques used to reduce the impact in a typical situation Introduction Treatment for air pollution Treatment for water pollution Treatment for soil pollution Costs for pollution treatment Quiz Key points Exercises AIR, WATER, SOIL

11 If pollutants are present, the rain water must be taken into account in the same way as process water (see « treatment for contaminated water ») The impact on water and soil can be avoided by using retention tanks in senstive zones. They are used to control water flow and to guide water towards a treatment unit (see Module 9 « Transport and storeage : storing primary marterials and finished products »). Treatment for water pollution Session 3: The techniques used to reduce the impact in a typical situation Introduction Treatment for air pollution Treatment for water pollution Treatment for soil pollution Costs for pollution treatment Quiz Key points Exercises AIR, WATER, SOIL

12 In the same manor that the water networks and potential leaks are surveyed, the following zones are controlled :De la même façon que lon surveille les réseaux et les fuites éventuelles, on contrôle les zones de : Storage of primary materials Production Storage of finished products In order to determine if the pollutants are transfered towards the soil or not. Treatment for soil pollution Session 3: The techniques used to reduce the impact in a typical situation Introduction Treatment for air pollution Treatment for water pollution Treatment for soil pollution Costs for pollution treatment Quiz Key points Exercises AIR, WATER, SOIL

13 To avoid any risk of pollution, the impossibility of a pollutant coming into contact with the soil ou transported by runof must be assured. The following methods are available: Cementing the concerned surfaces Using water resistant surfaces by using approperate roof covering Implementing retention zones where risks are possible Control and maintain on a regular basis motorized materials. Treatment for soil If ever the soil is polluted, a qualified authority should be contacted since the activities represent a financial cost nonnegogialble for the site,should pour la filiale. for the should be contacted. Warning Session 3: The techniques used to reduce the impact in a typical situation Introduction Treatment for air pollution Treatment for water pollution Treatment for soil pollution Costs for pollution treatment Quiz Key points Exercises AIR, WATER, SOIL

14 Costs for pollution treatment To assure that the measures taken to limit water consumption function correctly, certain technical and economical means are necessary. The chart below provides a few examples of costs for the technicall means used to reduce the impacts mentioned previously. This chart will be used for evaluating the costs in the « Exercises » MeasuresTechnical means or organisation Associated costs Lower the sound level issued by the activity Limit the number of loud sources (engines) based on the activity Limit the speed of the engines on the site (inform those concerned) Generate sound waves in stead of phases Make the area soundproof as well as the motors and machines. Impression Print the chart found in the Excel document Session 3: The techniques used to reduce the impact in a typical situation Introduction Treatment for air pollution Treatment for water pollution Treatment for soil pollution Costs for pollution treatment Quiz Key points Exercises AIR, WATER, SOIL

15 Nuisance and pollution treatment : Quiz Session 3: The techniques used to reduce the impact in a typical situation Introduction Treatment for air pollution Treatment for water pollution Treatment for soil pollution Costs for pollution treatment Quiz Key points Exercises AIR, WATER, SOIL

16 Key Points : The 3 principle nuisances and pollution vectors are water, air and soil. For each vector, different prevention, actions, and treatment means, exist in order to avoid that a pollution or nuisances flow towards the natural environment. Each site is responsible of their own discharges: a polluted water flow issued from its parameter has to contained, treated and purified. All pollutions and nuisances constated by the authorities, lead to potentially high fincanical costs in order to restore the area contaminated or victims harmed. Session 3: The techniques used to reduce the impact in a typical situation Introduction Treatment for air pollution Treatment for water pollution Treatment for soil pollution Costs for pollution treatment Quiz Key points Exercises AIR, WATER, SOIL

17 Exercises: Evaluation technico-économique des mesures pour réduire la consommation deau et éviter les pollutions et nuisances A laide du « tableau de criticité » de la séance 2, étudier les besoins de lentreprise : État des lieux « technique », analyse de existant (STEP, zone de rétention, isolement des machines…) Déterminer les besoins techniques et humains de la filiale (maintenance du matériel, manipulation, personnel concerné…) Déterminer les besoins en formation, sensibilisation du personnel (rejet des eaux, tri des déchets, vitesse des engins motorisés…) Session 3: The techniques used to reduce the impact in a typical situation Introduction Treatment for air pollution Treatment for water pollution Treatment for soil pollution Costs for pollution treatment Quiz Key points Exercises AIR, WATER, SOIL

18 Exercices pratiques: Evaluation technico-économique des mesures pour réduire la consommation deau et éviter les pollutions et nuisances Avec la grille « mesures, moyens, coûts » de cette séance, évaluer la faisabilité de chaque mesure et en estimer les coûts éventuels (cette étape nécessite du temps, les informations seront collectées au fur et à mesure des réponses) Relations avec des entreprises compétentes dans les types de travaux concernés (avis techniques, conseils,…) Demande de devis Évaluation du temps nécessaire à la réalisation de chaque mesure Classer les différentes mesures à effectuer dans un planning selon leurs importances (règlementation, coûts, besoin technique, protection du personnel...) AIR, WATER, SOIL Session 3: The techniques used to reduce the impact in a typical situation Introduction Treatment for air pollution Treatment for water pollution Treatment for soil pollution Costs for pollution treatment Quiz Key points Exercises


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