All About Recycling in Germany & Garbage Disposal Usage

One of the major global challenges in keeping the environment clean is the issue of solid waste management. However, Germany has successfully implemented several recycling policies on fighting against the increase of garbage heaps. The entire process of recycling can be a complex thing for a newcomer in the country. Interestingly, there are a few guidelines for anyone who wants to learn on how to go about it. Once you get used to the routine, you will be able to differentiate the garbage bins in front of your garage or home.keeping the environment clean

There is about 30 million tons of garbage generated in Germany annually. One of the most successful initiatives for recycling is the Green Dot system, which is reducing the number of packaging paper bags in the retail shopping centers. This also helps to force the manufacturers of those packaging bags to minimize production. Every manufacturer and retailer must pay for the Green Dot on the products. If they have more packaging, they will pay more on Green Dot fee. This system has contributed to significant reduction of paper, light glass, and less metal used, and thus leading to less garbage for recycling.

Even though the amount of solid waste generation can be reduced, the issue of proper management of the waste is a different thing. The Germany’s Green Dot program has been a success because of appropriate sorting.

Sorting Process and Recycling

green dot programAny glass bottle that is non-returnable belongs to the designated glass bins. Bottles such as wine bottles, glass jars, oil bottles, bath-salt bottles, and juice bottles should be put into the glass bins. However, wine corks, mirrors, porcelain, and ceramics do not belong to the glass bins. Since glass is sorted based on color, there are various slots to put green, brown, and colorless glass. These bins are dotted over all neighborhoods, and therefore you only need to mark the times when recycling should not be done. Do not forget that your neighbors may not be happy when disturbed while recycling bottles!

There are other bins that are placed at your doorstep. These are coded with colors; gray, brown, yellow, blue, and green. The entire bin might have the color in subject or just the lid. Note that; you should always follow the color of the lid. However, not all municipalities use similar colors for their sorting and recycling programs. For instance, you may not find a yellow or brown bin outside your house. Also, the paper may be deposited into a blue bin. If there is no yellow bin to deposit plastics, the materials can be put into a yellow plastic bag, which is then placed outside for more collections according to a certain schedule.

When plastic bags are used, they will be picked up in different places within a specified community. Blue bins are used for depositing all packaging made of cardboard, paper, waste paper, paper bags, magazines, newspaper, and more. However, tissue papers do not belong to blue bins. Sometimes, you may not find a blue bin at your doorstep but you can check if it is available somewhere around your neighborhood. According to the regulations, everyone should flatten boxes ahead of putting them into the bin. Also, the plastic wrappers that might be inside should be removed first before depositing the boxes into the blue bin.

Solid waste stuff such as plastic, cans, polystyrene, tinplate, aluminum, and composite materials such as cartons are supposed to be put in the yellow bins and yellow bags. Empty spray cans should also be deposited into the yellow bins. Remember, you should avoid putting cans inside each other. Since the sorting is mainly done by hands, various municipalities request the homeowners to rinse the cans and cups before throwing them into the bins. This is a kind request that does not mean actual washing, but a little rinse is highly appreciated.

Garbage Disposal Usage

The bio stuff makes approximately half of all the garbage generated in Germany. This includes kitchen food wastes such as peels, scraps, leftovers, coffee ground, coffee filters, tea bags, vegetables, and garden waste. Even though many homeowners put the waste materials into separate brown bins, some soft food materials are disposed of using a garbage disposal. The unit is fed with the food waste and then turned on so that the blades can grind the materials into smaller pieces, and then water is added to flush down the liquid waste into the drain pipes. Read more on

Lastly, you need to understand when to roll the waste bins out onto the street for pick-ups. Every area has a designated day of garbage collection, but you should find out which bin to put out. A local registration office can provide a calendar with the collection details. Alternatively, you can just wait until you see the neighbors rolling out their bins and also check the colors.

Solar-Powered RO Systems for High Recovery Fresh Water

In the arid and semi-arid areas that lack both freshwater and sea water, desalination of groundwater becomes an essential method to produce safe water for domestic use. A groundwater desalination system should have several desirable features such as sustainable energy source, high recovery ratio, high water output per energy unit, and sufficient space of land. Due to the high demand for sustainable production and environmental protection & conservation, a new system for driving reverse osmosis has been proposed and it uses a solar-Rankine cycle.produce safe water

Expanded steam is used as the working fluid against a power piston, which activates a piston pump to pressurize the salty water and force it to pass through a semi-permeable membrane. The forces between the two pistons are equalized by a countering crank mechanism. The batch mode is chosen in favor of the continuous flow to allow maximum energy recovery and reduced concentration polarization within the surrounding area of the reverse osmosis membrane. The factors that are considered in the entire system include the size and efficiency of the crank mechanism, the energy losses, and the overall performance during the separation at the RO membrane.

The level of salinity in the groundwater and soil continues to be an issue of concern across many arid regions in the world. In those arid and semi-arid regions, major areas of land are found above the brackish groundwater. Due to the absence of adequate annual rainfall in some areas, the groundwater can be desalinated in order to provide fresh water for the people living in those regions. Some examples of countries that utilize desalination systems include Egypt, Australia, Israel, India, Morocco, Jordan, the United States of America, and United Arab Emirates.

how does RO Systems work

Just like seawater, groundwater desalination process involves the use of energy. The conventional source of energy to power a desalination plant is the fossil fuels. However, the demand to supply an adequate amount of clean and safe water should be accompanied by minimal environmental impact. This is reflected by the use of clean energy in order to improve the efficiency of desalinating groundwater by taking the advantage of ‘free’ renewable energy sources such as solar.

There are many solar powered desalination processes that have been studied and some of them have been implemented. Most of these technologies lay on two categories; thermal distillation and non-thermal semi-permeable membrane separation methods such as reverse osmosis (RO) and electrodialysis. The distillation method by use of a single solar panel can produce a few liters of water per sq. meter while multiple solar panels can generate tens of liters per sq. meter.

Reverse Osmosis (RO) is typically thought to be the most energy efficient technique of purifying water. It does not require heat, instead, it needs mechanical work as the initial input. Generally, many RO solar plants use the photovoltaic (PV) arrays to power the RO system. This PV technology is effective and straightforward to implement, though it does not have the benefits of economies of scale. However, the biggest system ever is said to have produced 76 cubic meters on a daily basis. Consequently, the desalination plants when powered using fossil fuels can generate up to 100,000 cubic meters of fresh water on a daily basis.


Instead of using the PV technology, a solar-thermal power plant can be utilized to produce energy to drive reverse osmosis process.  Unfortunately, only a few similar plants have been established so far. One of the renowned plants was constructed in El Hamrawin in Egypt more than 30 years ago and reportedly generated about 130 liters of water per day per sq. meter of solar collector when desalinating brackish water with a salinity level of 3,000 ppm. The plant utilized the Rankine cycle and the Freon-11 as the running fluid. However, this working fluid is capable of depleting the ozone, and therefore its use was banned later. Read more on

There are specific calculations that have been presented concerning Rankine cycle-RO systems. These ones are anticipated to use a variety of alternative working fluids such as siloxanes.  However, siloxanes are hard-to-find, meaning other toxic working fluids such as toluene and benzene could be used. The modern solar-thermal power plants that are used today are based on steam Rankine cycle and can produce electricity that is fed into the grid. Such plants are found in the Mojave Desert, California.

Macerating Toilet Innovations/What is a Macerator Pump Used for?

There are several reasons to why you need to add a full-on bathroom to your home or any other place where a toilet is required. However, it is easy to get overwhelmed by the choice of design, finish, color, and all other pretty stuff. The best plans should be based on the climate area, gravity, and also the nature of the existing plumbing system. The dreams of having an effective and efficient bathroom fade away due to the location which is far from the main drain line. Such situation requires a major plumbing overhaul, which is also too expensive for some of the homeowners.full-on-bathroom-to-your-home

In most of the occasions, plumbing overhaul is done in the basements where the bathroom drain is below the level of the main drain line. When the gravitational pull is not sufficient to aid waste movement out of the house, you need an alternative means to transport it. The most common option is the macerating toilet, though, some people consider adding a sewage ejector pump.

What are Macerating Toilets, Anyway?

What are Macerating Toilets,When you flush a normal toilet, it will send the waste materials through the trap and into the waste line, and then into the main drain line to a septic tank or sewer. Since the drain line is below the toilet level, gravity will pull the waste into it. This is also what happens with tubs and sinks. Macerating toilets, also known as upflush toilets, sends waste material to a macerating unit that can be either located on the wall or behind the toilet. The waste is liquefied by high-powered blades and then forced out of the unit through a pipe tied to the main drain pipe.

Macerating toilets cost more than the ordinary toilets, but you can connect a smaller pipe to an existing system cheaply as compared to overhauling the entire thing. Whether it is a basement converted into a bedroom or a workshop toilet outside your home, you can install macerating toilets in a number of situations as long as they are situated within the range of the main drain. However, this range is controlled by the pump power which varies from one model to another. Normally, the vertical lift is somewhere between 10 and 15 feet while the horizontal run is somewhere between 100 and 150 feet.

Macerating Toilet Installation and Use

What are Macerating Toilets,To install a macerating toilet is an easy task. The entire process can take about 6 hours when done by a professional installer. However, mistakes when installing should be avoided because a small mistake fault can lead to a major problem – this is the last thing any homeowner would want to experience because you will be dealing with a raw sewage.

It is advisable to check the instructions in the manual and ensure you follow them appropriately. it is also vital to ensure that the discharge pipe is the right one as well as ensuring that the unit is well vented. There are a few details that should not be taken for granted while installing the macerating toilets. If you keep an eye on those details, some major problems will be prevented. However, the unit should be installed near a mains power supply, though most of them come with a plug for a grounded outlet.

Macerator Pumps

Macerator pumps are commonly used by boaters or in a recreational camp. They help people to comply with the regulations concerning discharge. A holding tank is usually used to empty into before discharging into docksides. A macerator pump is typically designed for emptying a holding tank. It includes a bronze cutter that is used for grinding waste into small pieces.

Electric macerator pump can be used as macerators, used to pump a holding tank, or pump certain toilet types. They are very compact and require a small space for installation. The waste to be discharged is passed through a bronze cutter to reduce the size of the particles, and then the impeller pump forces it through a hose pipe.

It breaks up solid particles to reduce the risk of clogging.

Can be used to pump into a holding tank or empty a holding tank

It requires small amount of water to flush the waste (if it is installed on the tank’s input side)

It may require between 10 to 15 amps of power depending on the model