OA18833A - Tricycle écologique pour la vidange des boues des ouvrages d'assainissement individuel. - Google Patents

Abstract

La présente invention concerne un système d'assainissement des boues de vidange aux moyens d'un tricycle écologique. La pompe à succion qui est installée sur le tricycle est reliée soit à un groupe électrogène ou à des panneaux solaires. La gestion des boues de vidange, matières extraites des ouvrages d'assainissement autonome, constitue une problématique environnementale qui se pose avec acuité, particulièrement dans les quartiers périurbains. Le système objet de l'invention repose essentiellement sur l'utilisation d'un tricycle dont les éléments techniques essentiels sont d'une part des dispositifs permettant d'effectuer des opérations de vidange des boues des fosses septiques situées dans des endroits d'accès difficile et d'autre part des moyens de fonctionnement de la pompe grâce à l'énergie fournie par un capteur solaire ou par un groupe électrogène. - Au départ il est nécessaire d'acquérir un tricycle standard similaire à ceux qui sont disponibles sur le marché. Sur ce matériel acquis on dispose les éléments suivants : 1. Pompe à succion 2. Un cubitainer d'une capacité de 1000 à 1500 litres. 3. un flexible de vidange d'une longueur au minimum de 10 mètres Le panneau solaire est monté sur le tricycle grâce à des supports en fer.

Description

The present invention relates to an ecological tricycle for emptying sludge from individual sanitation works.

It is characterized by means such as a flexion pump, a felxtble, solar panels, all integral with the structure of a conventional tricycle 5 that is found on the market.

I Problems which the invention seeks to solve

In sub-Saharan Africa, more than 80% of dwellings in large cities and up to 100% in medium-sized cities are equipped with autonomous sanitation facilities (Strauss et al. 2000). Due to the water shortage, the irregular water and for ¹⁰ economic financial reasons, network sanitation sewer is not appropriate in many urban informal sectors.

In Senegal, for example, it appears from the evaluation made by the Dakar 2025 Sanitation Master Plan, that nearly 70% of the regional population of Dakar, i.e. nearly 1.5 million inhabitants, use sanitation. autonomous.

The management of sewage sludge, materials extracted from autonomous sanitation works, constitutes an environmental problem which is acutely raised, particularly in peri-urban districts.

The sludge from the emptying of these pits is unacceptably managed in the sense that it is discharged into the wild (inside houses, in the streets, on the outskirts of towns, outfalls leading to the sea for some coastal towns) with all the associated health risks. The causes of these failures are multiple: legal, institutional, socio-economic, financial and technical.

With regard to technical failures, the emptying trucks, vehicles most often used for collecting and transporting the emptying sludge, are not suitable in certain areas which are difficult to access given the narrowness of the alleys. Hence the need to look for more suitable innovative solutions for emptying in these areas.

According to the study on the situational analysis of the management of sewage sludge, produced by Water Sanition Africa (WSA) and the consultancy firm H2O engenering, in Senegal, manual emptying with an average cost of 14,500 F CFA per operation is the least expensive and most accessible method of emptying for the poorest populations compared to mechanical emptying, the average price of which is 25,700 F CFA.

The mechanical emptying activity encounters difficulties linked to the obsolescence of the trucks, the unavailability of spare parts and the difficult access to concessions by the 5 trucks. The distance from official or authorized dumping sites affects the cost of emptying which is sometimes considered too high for the population. The price of mechanical emptying can vary from 10,000 to 40,000 FCA or more.

The determining criteria for choosing a draining mode (mechanical or manual or the combination of the two modes) are multiple. However, cost appears to be the most determining criterion.

The uncontrolled dumping of sewage sludge into the environment, causes many diseases and entails associated economic, human, social, health and environmental costs which constitute a heavy burden for African countries.

State of the art

a) Non-patent documentary source

- Emptying carts and tricycles are part of the solutions offered in areas that are difficult to access.

The technologies described in the booklet at the 4th World Water Forum held in Mexico City in 2006 describe suitable solutions for sanitation: examples of innovative low-cost technologies for the collection, transport and treatment and reuse of products sanitation is a source of inspiration.

b) Patent documentary source

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Closed electric tricycle suitable for urban express transport

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Solar environmental sinisation tricycle

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III Description:

The ecological tricycle for emptying sludge from individual sanitation works (Plate 1) is essentially based on the use of a tricycle allowing emptying operations of sludge from septic tanks located in places with difficult access.

Constituent elements of the invention (plate l / VI ί

- At the start it is necessary to acquire a standard tricycle similar to those available on the market on which we adapt on the one hand means of emptying and storage of sludge-latrines and other sanitation and on the other hand means of energy functioning.

a) Means of emptying and storage: these are the following elements

1. Suction pump (board V / VI)

2. a drain hose with a minimum length of 10 meters board IV / VI).

3. A cubitainer (plate ll / VI) with a capacity of 1000 to 1500 liters which is either purchased on the market or from the recycling of those formerly used for other purposes.

4. Tilting system for sludge emptied into trucks for dumping at the disposal areas (Plate Ill / VI)

b) energy operating means: these are:

1. solar panel mounted on the tricycle using iron supports (plate VI / VI).

2. Generator which can be used when necessary to supply energy to the suction pump.

2) operation of the invention

- The service of mechanical emptying of septic tanks by motorized tricycle, is carried out by suction by means of a vacuum pump. The drain hose is introduced into the pit and the contents are vacuumed. Removing the sludge using the suction pump considerably reduces workers' direct contact with the sludge. The suction pump, connected to a generator or to solar panels; is connected to the cubitainer with a capacity of 1000 L or 1500 L, mounted on the tricycle. The tricycles access the emptying site, empty the pit and transfer the sludge to the emptying truck which will be responsible for transporting them to the Sludge Treatment Station.

3) Advantages arising from the implementation of the invention

The implementation of the invention is to allow populations living in areas difficult to access to empty their individual sanitation works (septic tanks, latrines) without causing any risk to the health of people and l environment, while promoting the recovery of by-products from the treatment of sewage sludge as fertilizer for agriculture, as fish food and / or renewable energy: fuel, biogas, electricity.

This implementation can contribute to:

• Improve human health and the environment;

• Reduce the cost of emptying;

• Creation of green jobs;

• Improving food security;

• Reduction in energy bills.

NOMENCLATURE

Part number Last name 1 Pump 2 Discharge port 3 Suction port ________ 4 engine______ 5 cubitainer 6 Filling hole______ 7 Drain plug 8 Filling plug 9 Flexible 10 Cylinder rod 11 Cylinder cylinder 12 Solar panel

Claims (2)

1. ecological tricycle for the emptying of sludge from individual sanitation works on which are mounted means for emptying and storing sludge, latrines and operating with energy supplied either by a solar collector or by a group 5 generator. 2. ecological tricycle for emptying sludge from individual sanitation works according to claim 1 characterized in that it consists of the following elements Suction pump a drain hose with a minimum length of 10 meters. - A cubitainer with a capacity of 1000 to 1500 liters which is either acquired on the market or from the recycling of those formerly used for other purposes. solar panel mounted on the tricycle using iron supports. Generator which can be used when necessary to supply energy to the suction pump.