About Us

Beijing Tidelion S&I Rainwater Harvesting Technology Co., Ltd has been in the field of rainwater resource and management for the last eighteen years. Tidelion knows the importance of rainwater for the sue in urban and rural regions and has introduced solutions that help to save the water resources to a great extent. The company has provided consultancy and services to different countries such as Iran, Maldives, and Singapore to help them in implementing the complete smart city model in different cities. Tidelion is a leading sponge city model provider and aims to bring water wastage to a minimum level safeguarding valuable water resources.

A Certified Sponge City Model Provider

Tidelion has been working with different countries to provide solutions to help them implement the complete smart city model in various cities that are facing rainwater issues. We has been a leading sponge city model provider and is determined to provide efficient solutions in the wake of the development of several smart cities. The company has individual working plans to ensure the transition of cities into smart cities and to provide sustainable resources to protect the rainwater and river reserves. We have affordable rates to ensure the large-scale development of smart cities to protect the diminishing water resources at different levels. We, as a pioneer smart water drainage system provider, ensure to provide designated systems to ensure the proper discharge of water from different locations.

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Our Solutions

  • Rainwater collection and utilization system

  • Roof rainwater drainage

  • Drainage on the same floor

  • Infiltration of ecological ground system series products

  • Rainwater smart management system

  • Drainage System Design Consultation

Smart Rainwater Management & Drainage System Solution

Roofing Rainwater Drainage and Collection System

Roofing rainwater drainage and collection system has dual function of rainwater drainage. Following the flow pattern in the roof rainwater drain line, the system includes three systems namely gravity flow, semi-pressure flow and siphon flow. Rainwater in gravity flow system is not fully filled; rainwater in semi-pressure flow system is demonstrated via mixture of air water in pipeline; rainwater in siphon flow system is fully-filled on way. Different system should apply professional roof drain.

Our Projects

Tidelion cooperated with FAW-Volkswagen, created a miracle

Recently, all Tidelion staff were touched by a thanks letter from for North Base of FAW-Volkswagen Automotive construction Headquarters. Tidelion Construction Management Division finished a more than 7000m2 siphonic roof installation project within 20 days, it not only won the customers’ recognition, but also created a miracle in the industry.


Tidelion cooperated with FAW-Volkswagen, created a miracle

Recently, all Tidelion staff were touched by a thanks letter from for North Base of FAW-Volkswagen Automotive construction Headquarters. Tidelion Construction Management Division finished a more than 7000m2 siphonic roof installation project within 20 days, it not only won the customers’ recognition, but also created a miracle in the industry.

Mar 20,2020

Sponge City Industrial Innovation Cente

Relying on the construction water supply and drainage research branch of China construction society, the sponge City Industrial Innovation Center is established, and the public service platforms and resource sharing platforms such as sponge city technology research and development, standard research, test verification, detection and monitoring, project incubation, information collection, project evaluation and demonstration, achievement exhibition and display are established, as well as the introduction, training, training and exchange of professional talents in sponge city Base.    

Sep 15,2021

How To Encourage the Prevalence Of Rain Water Harvesting System?

Rainwater harvesting system is a relatively new technology equipped with potential benefits for its users as well as for averting water crisis. Since it’s new, the installation process of RWH is not known to many. Therefore, people remain deprived of using the vast amounts of benefits associated with the process.  Rain harvesting system can be installed with the help of some do-it-yourself techniques coupled with easy-to-maintain technologies. Such technologies tend to be inexpensive, so you do not have to put extra strain on your pockets. This is a standard system involving the use of different modules. These modules carry out processes of expansion, reconfiguration, and relocation.  A majority of houses remain deprived of the advantages of RHS technology because they have no clue about the installation procedure. The lack of interest can also be due to the high installation prices of the system and the inability to find the right installation place. But keeping aside these barriers, governments are trying to minimize the installation costs and related problems, so a maximum number of people can benefit from it. They are also increasing the use of better water management practices.  How To Encourages Masses? Many ways can be employed to encourage the use of RHS among the masses by providing incentives. Such incentives can include covering up the expenses of installation and helping them to find the places of installation without charging them. The water management should install regulatory frameworks to keep a check on the installed rain harvesting systems. The government of Brazil and Germany are following the same models and it has greatly averted their water crisis. At the same time, the government of Germany is devising ways to use rainwater in the construction of buildings and infrastructure projects.  In addition, other countries like Taiwan, Texas, and Brazil are also paving ways to incorporate the use of rainwater for the construction of residential buildings. They have made its use necessary in the catchment of roofs. Despite all these endeavors, what’s required is devising policies to the use of RWH a mandatory practice for people in all the nooks and corners of the world.  Once the laws will be devised for RHS, it will become eligible for government funding. Once that happens, people can loan money from the officials and construct the RHS at their houses. Thus, with proper allocation of the installation and associated expenses, the government can increase the prevalence of the rainwater harvesting system.  A Prospective Vision for Rain Harvesting System Strategic rainwater management can prove to be very useful for people who live in water-scarce areas and their lands have gone barren due to no water for agriculture. For such people, rainwater harvesting is a blessing. Our world is suffering from a water crisis already, in such a situation, we should use all the water we can get. Treating the rainwater to make it right for consumption can save millions of children that die every day due to lack of drinking water. The scalability of RWH must ensure that water is provided and available when needed free of contamination, and as a resilience option in remote rural areas that are hit hard by climate change and rainfall variability. Water management can contact reliable Rainwater harvesting system manufacturers for the ease of people and source the system from them.  

Jan 14,2021

Domestic News

2021 annual meeting of China urban water supply and Drainage Association held in Chongqing   Chongqing is a typical mountainous city, with relatively poor surface water resources and uneven spatial and temporal distribution.   How to ensure the safety of water supply and drinking water in mountainous cities? On April 16, the 2021 meeting of China urban water supply and drainage association was held in Chongqing. Several academicians of Chinese Academy of Sciences and Chinese Academy of Engineering gave their own proposals for theme report.   Reducing the difference of water supply between urban and rural areas   "The period of the 14th five year plan is the key period of the short board of water conservancy projects. We should take the national water network construction as the core, and accelerate the formation of a complete and scientific water conservancy infrastructure system." According to niuxinqiang, academician of Chinese Academy of engineering, the construction of national water network is the fundamental policy to ensure the safety of urban and rural water supply. Cities and cities including Chongqing should base on the spatial balance of water resources across the river basin, and then reduce the water supply differences between urban and rural areas.   In order to reduce the difference of water supply between urban and rural areas, niuxinqiang suggested that, on the premise of feasible technology and reasonable economy, the urban network should extend to the countryside, and form a water supply pattern with large concentration, intensive suburban areas and small scattered mountains and fields, and finally achieve the goal of "the same network and the same quality" of urban and rural water supply.    According to the difference of water supply between regions, nuxinqiang also talked about his own ideas“ The economic circle of Chengdu Chongqing should build regional water network, and each should divert water nearby to alleviate the problem of excessive development of rivers. " According to Niu Xinqiang, Chongqing can implement the water lifting projects of the Yangtze River and Jialing River, replacing the original planned construction of small and medium-sized reservoirs; Chengdu can divert water from Dadu River with low utilization ratio and supply water to Dujiangyan irrigation area.   Building "sponge city" to alleviate waterlogging   Last summer, Chongqing ushered in a flood, and the problem of urban waterlogging after the flood peak crossing also highlighted. How to alleviate the city waterlogging? Rennanqi, academician of Chinese Academy of engineering, thinks that building a "sponge city" is a solution.   Chongqing has special topography and landform, and the surface water resources are relatively poor. It is necessary to build a "sponge city".   As early as 2016, Chongqing has become the first batch of pilot cities for the construction of the national "sponge city", and Yuelai new city, Liangjiang New District, is the first pilot area for the construction of "sponge city" in our city.    "I've been involved in the pilot work. It can be said that Chongqing 'sponge city' construction is in the forefront of the country, and the successful experience of Yuelai is worth promoting Ren said.   Let the water environment "restore nature" as much as possible   "The flood disaster in the Yangtze River Basin was very serious last year, whether it is in the upper reaches of Chongqing or Wuhan in the middle reaches." Xia Jun, academician of Chinese Academy of Sciences, believes that flood is caused by urbanization, climate change, rain and flood management.   "The hydrological effect brought by urbanization has brought adverse effects on the urban ecological environment." Xia Jun introduced.   Climate change can also be ignored. The extreme precipitation events are increased obviously due to global warming, and the intensity and frequency of Rainstorm in some areas are obviously increased. For example, Chongqing is located in the upper reaches of the Yangtze River Basin in the eastern monsoon region, and the flood and drought disasters are frequent. Once the flood season is entered, Chongqing will usher in abundant precipitation, and the risk of heavy rain and flood disaster is relatively high.   "To solve the flood and flood, we should eliminate the adverse hydrological effects brought by urbanization as far as possible, and make the water environment return to natural state as much as possible." Xia Jun said.   Healthy water is a "false proposition"   "Friends often encounter problems related to health water, and they see articles and videos on the Internet boasting about" healthy water. " Qujiuhui, academician of Chinese Academy of engineering, thinks that the "healthy water" on the Internet is actually a false proposition, and the World Health Organization has not formulated specific standards for healthy water.   In qujiuhui's view, healthy drinking water is not so complex as the business said, in fact, it depends on three indicators: to meet the national standards, no health risks, good taste and drink. However, there are still risks in drinking water quality, and they are faced with many challenges such as biological safety, chemical safety and complex pollution.   In recent years, the news of "antibiotics discovery" in rivers and tap water in China has aroused public concerns about drinking water safety. The chemical safety threat caused by antibiotic pollution cannot be underestimated.   "Industrial wastewater treatment is biological treatment, and it is not effective for antibiotics." Qu said it is urgent to establish the standards for antibiotic residues in drinking water, and then control antibiotics from the source. Western countries have been at the forefront, and the United States has restricted the use of antibiotics in aquaculture since 2014.   Water safety challenges   "Drinking water safety has become the primary issue in urban development." Ma Jun, academician of Chinese Academy of engineering, believes that the safety of drinking water should be ensured from several aspects.   Firstly, the dynamic detection sensor and intelligent monitoring system of water quality and the technology of green membrane without power are developed to remove heavy metals and microorganisms from water source. Secondly, the problem of water age reduction, pressure mutation and intelligent water supply are needed in the planning and transformation of pipe network.   "We should improve the drinking water quality standards, and draw up national drinking water hygiene standards suitable for the characteristics of China by referring to the relevant international drinking water standards such as the United States and the European Union." The Ma army stressed that we must strengthen the protection of water sources.  (reporter: fengjiyao, an intern of Cui Yao)    (the manuscript is originally published in Chongqing daily on April 19, 2021)