It takes 1000 cubic meters of pure water to produce one ton of pure glue with sodium alginate.

　Production process of sodium alginate
Description of process flow:
After the kelp is weighed, it is soaked in water 5 times the weight of dry kelp for 20 hours, drained, soaked in tap water and liquid alkali for 3 hours, and the wet kelp soaked for five times is sent to a pulverizer to be crushed to 2-3mm, washed with water, dewatered in a cage and sent to a digester; Adding 1% hot alkaline water (sodium carbonate) at 80℃ to kelp in a digester, stirring uniformly, standing for two hours, performing primary pulping, digesting for one hour, performing secondary pulping, and digesting for 0.5 hour, performing tertiary pulping, then placing in a dilution pool, diluting until it reaches Engel's for 100-120 seconds, uniformly mixing with compressed air, sending to a foaming machine for foaming and settling for 2.5-3 hours. The filtrate is pumped into a calcification system for calcification, and chlorine gas is added for bleaching at the same time, and 1% calcium solution (calcium chloride concentration is 10%) with glue solution is added, which is foamed by a foaming device and stirred at high speed, then enters an aging tank, and then enters a decalcification bucket to be decalcified with 5% hydrochloric acid, and then enters a cage for dehydration. After three decalcification, it is squeezed and dehydrated to generate alginic acid, which is then sent to a liquid phase converter and added with 75% ethanol solution. Neutralization to pH 9, centrifugal dehydration (distillation and recovery of waste ethanol solution), pelleting and granulating the centrifuged sodium alginate, drying it in a dryer until the water content is 16%-17%, then pulverizing it into 40 meshes in a mill, and packaging it after passing the inspection.
Since 2014, our city has suffered from continuous drought, and the water storage of the project is seriously insufficient. On the 7th, the reporter learned from the Municipal Water Conservancy Bureau that this year, the city diverted 500 million cubic meters of passenger water, and the amount of water diverted reached a record high. In 2016, while making every effort to ensure the safety of water supply, the Municipal Water Conservancy Bureau also made overall plans to ensure the safety of flood control, and carried out the construction of water conservancy projects for people's livelihood, and completed various annual targets and tasks.

　　　　
water transfer

　　　　500 million passengers reached a record high in the whole year.

　　　　Since 2014, our city has suffered from continuous drought, the water storage of the project is seriously insufficient, and the water supply situation is extremely severe. With the rapid advancement of industrialization and urbanization, the problem of water shortage has become increasingly prominent. The Municipal Water Conservancy Bureau regards ensuring the safety of water supply as an important political task, and fully taps the potential of local water sources: it has completed the drought-resistant pumping project in the poor water area of Landi and the dredging project of four large and medium-sized reservoirs, invested 110,000 sets of drought-resistant equipment, used 4.671 million kwh of drought-resistant electricity, and completed the drought-resistant irrigation area of 664,000 mu. In the case that more than 95% of our city's water supply depends on the water from the Yellow River and the Yangtze River, we will actively coordinate with the relevant provincial departments to increase the diversion of passenger water in our city. It is estimated that 500 million cubic meters of passenger water will be diverted throughout the year, and the emergency water supply will be increased by taking measures such as drawing dead storage capacity, digging ponds in the reservoir and digging wells in the pond. The annual passenger water volume of 500 million cubic meters has also created a new record for the city to transfer passenger water. In addition, the Municipal Water Conservancy Bureau has also accelerated the construction of large water network, and the large water network engineering system of "connecting reservoirs and rivers" has begun to take shape. The water diversion project of Huangtong Reservoir, the water supply project from Yunshan to Pingdu City, and the joint regulation project of Gaogezhuang Reservoir and Chanzhi Reservoir were completed, and the joint regulation project of Huangshan Reservoir and Yinfu Reservoir and the Zhihe River regulation project of Beishu Reservoir and Chanzhi Reservoir were completed, which provided the conditions for water supply. Huangdao, Jimo and Pingdu emergency diversion projects were successfully completed. Supporting Project of the East Route of South-to-North Water Transfer Project — — Xinhe Reservoir was completed ahead of schedule and has water storage conditions, with a total storage capacity of 9.95 million cubic meters.The daily water supply capacity is 53,000 cubic meters, which can guarantee the industrial water and domestic water of Xinhe Chemical Industry Base and the surrounding three towns. Since then, 242,000 local residents have bid farewell to the history of eating bitter water.

　　　　prevent flood

　　　　Maintenance and reinforcement of 9 rubber dams in Daguhe River

　　　　This year, many places in China experienced severe floods. In order to ensure flood control safety, the Municipal Water Conservancy Bureau implemented the flood control responsibility system at different levels, revised and improved the internal flood control regulations, signed flood control responsibility letters, and implemented the flood control responsibilities of key flood control projects such as Dagu River and 23 large and medium-sized reservoirs in the city. Before the flood season comes, the 60 potential safety hazards found in the front row were promptly issued the Responsibility Letter for Flood Control and Hidden Dangers Rectification, and 10 million yuan was allocated for emergency flood control. At the beginning of August, the water conservancy departments of all districts and cities carried out special rectification on the problems detected, and re-implemented the preventive measures such as flood control projects under construction, low-lying areas, drainage pipe networks and flash flood-prone areas. On July 22nd, the Municipal Defense Office organized a flood prevention and rescue drill in Shaohai, Jiaozhou, to comprehensively test the capabilities of command and dispatch, material dispatching, team organization and engineering rescue. In addition, on the basis of maintaining eight standing flood control teams with more than 3,600 people in the city, a municipal flood control and rescue team with 400 people was established, and a flood control project rescue team with 70 people was established based on the construction unit, which increased the flood control and rescue support force. The city has implemented 27 types of flood control materials with a total value of more than 40 million yuan. From 19 to 21 August, most areas of the city experienced heavy rains, with an average precipitation of 51.2 mm and local rainfall of 230.5 mm.. After the rainstorm, the municipal defense office immediately issued an orange warning for flood control, launched a flood control level II emergency response, strengthened the frequency of duty and dispatch, and responded to emergencies at any time. Under the background of making good preparations for personnel and materials,The Municipal Water Conservancy Bureau has also intensified the construction of flood control projects, and implemented the regulation projects of small and medium-sized rivers in pingdu city and Laixi Xiaogu River (shenyang-haikou expressway Bridge Section), Moshui River in jiaozhou city (du cun Section) and Baima River in Huangdao District (Henan Zhuang Section of a big village), as well as the renovation project of Bigou River in Qingdao Jiaodong International Airport. In addition, the maintenance and reinforcement works of nine rubber dams in Daguhe River have all been completed, and the reinforcement works of three medium-sized dangerous sluices in Dajinjia, Gaogezhuang and Shuangtuan in jimo city have been completed and accepted. The reinforcement works of two medium-sized dangerous sluices in Changping Road in pingdu city and Yuanjiazhuang in jimo city are being accelerated and will be completed before the end of the year.

　　　　people's livelihood

　　　　Drinking water safety in 284 villages is more reliable.

　　　　In order to improve agricultural production conditions, our city invested 215 million yuan this year, and completed 118 small-scale irrigation and water conservancy projects in key counties and large-scale water-saving irrigation demonstration projects in Laixi city, developing an area of 72,500 mu of high-efficiency water-saving irrigation and building 50,000 mu of high-standard farmland, which provided strong support for the city's grain production increase. Drinking water safety is related to people's health and happiness index. On the basis of 95% population coverage of large-scale rural water supply in the city last year, three centralized water supply projects, including Yinzhushan pipe network extension project in Huangdao District, Wangtai water supply project and Huangshan Lime Kiln Water Plant, were newly built in our city. At the same time, 284 villages' drinking water safety consolidation and upgrading projects were completed, and four county-level water quality testing centers and 28 water quality laboratories with 10 million people were built. The goal of "urbanization of rural water supply and integration of urban and rural water supply" has been basically realized. Water conservancy is the lifeblood of agriculture. "With small-scale farmers' water, droughts and floods are no longer worrying", which is the aspiration of the majority of farmers. In view of the sharp change of drought and flood in summer in our city, the Municipal Water Conservancy Bureau has implemented key county projects for the management of small and medium-sized rivers in 8 river sections, completed the reinforcement of 9 rubber dams and 3 medium-sized sluices, and upgraded the non-engineering measures for the prevention and control of mountain torrents, successfully resisting the attack of heavy rainfall in some areas.

　　　　save water

　　　　Two indicators: Island City leads the country.

　　　　Water is the foundation of ecology and an important engine to promote sustainable development. In the face of the serious water shortage in our city, the Municipal Water Conservancy Bureau conscientiously implemented the strictest water resources management system, gradually decomposed and issued the "three red lines" control objectives, and extensively carried out activities to save water into the campus, into the community and to create water-saving units. The water consumption per 10,000 yuan of GDP in our city and the effective utilization coefficient of farmland irrigation water all reached the national leading level in water saving. In addition, the scientific adjustment of water function zoning by the Municipal Water Conservancy Bureau ensured the smooth progress of major projects such as Guzhen Kou integration of defense and civilian technologies Innovation Demonstration Zone and Jiaodong International Airport. Carefully organize the management and maintenance work of Dagu River after its construction, strengthen daily inspections, strictly assess rewards and punishments, and further consolidate the governance achievements of "Hongchang, dike consolidation, clear water, green shore and beautiful scenery". Dagu River Project won the highest award in the national water conservancy industry this year — — Dayu award. This year, the Municipal Water Conservancy Bureau also completed the construction of closed enclosure protection projects for water sources of four large and medium-sized reservoirs, such as Chanzhi, Shuyuan, Sunjiatun and Qingnian, and strengthened the water quality monitoring of key water sources and water functional areas in the city, so that the water quality of water functional areas reached the provincial assessment target. Completed the upgrading and transformation of the education base of soil and water conservation in Qiangushan primary and secondary schools, and completed four small watershed management projects, including Yaogou in Laixi City, Beishan in pingdu city, Xiongya in jimo city and Shanzhou Reservoir in jiaozhou city, with a total area of 46 square kilometers; Invested 40 million yuan to harness 40 small rivers and ditches around the village, improving the living environment of the people around the village.Green water and green mountains have become the advantages of economic and social development.

　　　　aid the poor

　　　　Construction of 110 resettlement support projects

　　　　In order to implement the goal of precise poverty alleviation, the Municipal Water Conservancy Bureau has compiled the Implementation Plan of Qingdao Water Conservancy for Poverty Alleviation, and invested 133.87 million yuan in the construction of water conservancy projects in poor villages and economically weak towns and villages, accounting for 21.9% of the total investment in water conservancy and benefiting farmers in the whole year. A precise poverty alleviation account was established, with an investment of 53.2 million yuan, and 110 immigrant support projects were built, of which 85% were concentrated and large-scale production development projects. Using the income generated by the projects, the income of 421 poor immigrants was increased by 3,000 yuan each. Completed the annual verification of 111,000 immigrants and the distribution of 74.4 million yuan of direct subsidy funds in the later period of immigration. Actively strive for the provincial reservoir resettlement business loan discount fund of 5 million yuan, and incite 120 million yuan in Pingdu and Laixi to support production development. Fifteen residential buildings in the second phase of the pilot project of Gaogezhuang Village Reservoir Resettlement in Laixi City were completed as scheduled, and residential communities and industrial parks were built simultaneously. Before the end of the year, 481 households and 1,292 immigrants will move to their new homes, and 110 immigrants can be resettled to earn income. We will continue to intensify poverty alleviation through science and technology, change "blood transfusion" into "hematopoiesis", sign a contract with Qingdao Agricultural University, establish a "one-on-one" nanny-type expert contact point, organize science and technology to go to the countryside and experts to give counseling for 30 times, and train more than 2,000 immigrants.

　　　　plan

　　　　Twelve measures to realize a new leap in water conservancy next year

　　　　In 2017, the city's water conservancy work will be based on the pilot construction of national water conservancy modernized cities and national water ecological civilized cities, focusing on ensuring the "three safety" of flood control, water resources security and water ecology, and will do a good job in flood control and drought relief, and make every effort to improve the defense ability against natural disasters. Do a good job in the construction of water source allocation projects to ensure the safety of water use for economic and social development in the city. Do a good job in farmland water conservancy, rural tap water consolidation and upgrading, and strive to improve farmers' production and living water conditions. Do a good job in water resources management and soil and water conservation, and strive to promote the level of urban and rural water ecological civilization construction. Do a good job in supporting water conservancy immigrants in the later period, and vigorously promote the construction of "living in peace, happiness, well-off society and beauty" reservoir areas and resettlement areas. Strengthen the management of Dagu River and strive to create a new situation in the management of Dagu River. Strengthen the construction and management of water supply projects in the west coast to better serve the local economic and social construction and development. Next year, the Municipal Water Conservancy Bureau will strive to achieve a new leap in water conservancy work from twelve aspects, such as flood control and drought relief and farmland water conservancy, and provide water conservancy support and guarantee for the economic and social development of our city. (Qingdao Evening News/Pocket Qingdao/Qingwang reporter Xu Meizhong)

A ton of seaweed needs 1000 cubic meters of purified water. Can sodium alginate not be nervous because of the water shortage in Jiaodong Peninsula?