How Integrated urban water management by coupling iron salt production and application with biogas upgrading？
The integrated urban water management by coupling iron salt production and application with biogas upgrading involves several steps:
1. Iron salt production: Iron salt is produced from iron ore and used as a coagulant in wastewater treatment. The production process involves the extraction of iron from iron ore and the subsequent reaction with an acid to produce the iron salt.
2. Coagulation and flocculation: The iron salt is then used as a coagulant in the wastewater treatment process. It helps to remove suspended solids, organic matter, and nutrients from the wastewater.
3. Biogas production: The organic matter removed from the wastewater during the treatment process is then used to produce biogas through anaerobic digestion. Biogas is a renewable energy source that can be used for various purposes such as electricity generation, heating, and cooking.
4. Biogas upgrading: The biogas produced is then upgraded to remove impurities such as carbon dioxide and hydrogen sulfide. This process increases the energy content of the biogas and makes it suitable for use as a transportation fuel or for injection into the natural gas grid.
By coupling iron salt production and application with biogas upgrading, this integrated approach to urban water management can achieve both wastewater treatment and energy recovery in a sustainable and cost-effective manner.
如何通過將鐵鹽生產(chǎn)和應(yīng)用與沼氣升級相結(jié)合來實現(xiàn)城市水資源綜合管理
通過將鐵鹽生產(chǎn)和應(yīng)用與沼氣升級相結(jié)合，實現(xiàn)城市水資源綜合管理，包括幾個步驟：
1.鐵鹽生產(chǎn)：鐵鹽由鐵礦石生產(chǎn)，用作廢水處理中的混凝劑。生產(chǎn)過程包括從鐵礦石中提取鐵，然后與酸反應(yīng)生成鐵鹽。
2.混凝和絮凝：然后在廢水處理過程中使用鐵鹽作為混凝劑。它有助于去除廢水中的懸浮固體、有機物和營養(yǎng)物質(zhì)。
3.沼氣生產(chǎn)：污水處理過程中去除的有機物通過厭氧消化產(chǎn)生沼氣。沼氣是一種可再生能源，可用于發(fā)電、供暖和烹飪等多種用途。
4.沼氣升級：然后對生產(chǎn)的沼氣進行升級，以去除二氧化碳和硫化氫等雜質(zhì)。這一過程增加了沼氣的能量含量，使其適合用作運輸燃料或注入天然氣管網(wǎng)。
通過將鐵鹽生產(chǎn)和應(yīng)用與沼氣升級相結(jié)合，這種城市水資源管理的綜合方法可以以可持續(xù)和成本效益高的方式實現(xiàn)廢水處理和能源回收。
