Challenges facing the wastewater treatment industry

Articles

There are important challenges for the development of the wastewater industry facing activists in this field. One of the points that can be mentioned is the infrastructure of this industry. Because most of the structures in this industry, due to being old, need new and up-to-date changes. Therefore, we need to overcome the problems ahead by identifying and evaluating the condition of the pipes and the construction site of the treatment plant.
Another case is the global consumption pattern. People in completely different countries and according to climatic and biological conditions have a completely different amount of consumption. By modifying the high consumption patterns of people in different places, the amount of pollution and water consumption can be greatly controlled and even reduced. The use of new and advanced technologies in the wastewater industry and its recovery to the natural cycle has received much attention in recent years. Engineers in the field are working to turn wastewater into gray water that can be used and standardized so that it can be used for other industrial and agricultural purposes.
Use of municipal wastewater
The reuse of gray water or the water of washing machines, showers, bathtubs and sinks has become especially important in recent years. The purpose of using gray water is to promote its reuse to improve plant ecosystems, produce clean water, and prevent contamination of other water sources, reduce costs, and protect wildlife. Gray water accounts for about 70% of household consumption. The approximate amount of sewage that is produced every day in a house, per person, is 20 liters for toilets, 63 liters for showers, 6 liters for toilets, 13 liters for washing machines, 12 liters for kitchen faucets and 5 liters for dishes.
With a few simple and practical methods and with the help of industrial filtration systems, the use of municipal wastewater can be maximized after treatment. These methods are one of the most sensible options to increase water productivity. Recycling dirty aquarium water is one of the things that can be used to irrigate gardens and pots instead of throwing it away. This water contains substances such as nitrogen, phosphorus, potassium and ammonium and other microorganisms that act as a natural fertilizer for plants in soil sediments.
Another of the richest water consumed is water, which is consumed when cooking vegetables and pasta in kitchens. They can be collected in a container and used to irrigate pots and gardens after cooling. Sewage from washing clothes can also be used in many cases, such as washing the yard and parking lot. To collect this water, the washing machine outlet hose can be separated from the domestic sewer and connected to a longer hose that reaches the yard. By installing several gutters, rainwater can be stored and used to irrigate houseplants and gardens, because rainwater is very clean compared to other types of water, such as gray water.
Of course, it should be noted that different instructions are required to reuse gray water. The first thing to note is that the stored gray water should not be left for more than 24 hours. Because it will break down the available nutrients and create an unpleasant odor. Therefore, minimize the amount of contact with gray water. As we know, gray waters contain pathogens that are very harmful to human health and other living organisms.
The use of gray water reuse technology, its recycling into home systems, and its reuse for non-drinking purposes has spread to many countries around the world, and it is hoped that the use of this method will flourish in Iran in the coming years. Let’s see. In Japan, for example, in order to reuse gray water, 345,000 cubic meters of treated wastewater is produced annually, or in Mexico, $ 135 per hectare is saved annually by reusing sewage, which is a significant amount for Are considered farmers.