Recently, the National Development and Reform Commission issued four interpretation articles in a row to comprehensively interpret the "14th Five-Year Plan for Urban Sewage Treatment and Resource Utilization Development Plan" issued. During the "14th Five-Year Plan" period, the utilization of sewage resources has been accelerated, which has promoted the empowerment and upgrading of the sewage treatment industry. Its key material, water treatment membrane, has also received more and more attention, which has also promoted the development of my country's water treatment membrane industry. According to estimates, the total investment in my country's membrane recycled water treatment market will reach 107.1 billion yuan. As sewage resource utilization continues to accelerate, the market space of 100 billion yuan will accelerate.Water treatment membranes...

In the first half of 2021, the investment in water treatment industry projects was 180 billion yuan, a decrease of 48.7% year-on-year. In the first half of this year, water treatment projects were mainly concentrated in South China, with an investment of 109.3 billion yuan in industry projects.The downstream customers of the water treatment industry are mainly electric power, metallurgy, chemical industry, municipal water affairs and other industries. The prosperity of these industries is closely related to the development of the national economy and the fluctuation of fixed asset investment.Due to a certain degree of volatility in my country's macroeconomic development, the government will take stricter macroeconomic control measures in a certain period, and even directly limit the scale and investment progress of fixed asset investment in specific industries, causing the water t...

    Text | Zhejiang University Professor Ye Zhangying "Electrolysis Water Technology Channel" Luo Haixin   Editor | "Electrolyzed Water Technology Channel" Pei Luowei   In recent years, with the continuous improvement of breeding levels, my country's breeding industry has entered a period of rapid development. However, due to the intensive scale and high-density breeding of farms, the pathogens in the farms have become increasingly complex, and these pathogenic microorganisms can survive under appropriate conditions. Cause the epidemic of epidemic diseases, such as swine fever, foot-and-mouth disease, porcine blue-ear disease, porcine circovirus, avian influenza, high fever, etc., the faster the pathogenic microorganisms spread. Once an infectious disease breaks out, it is often too late to take measures. , will cause serious economic losses. &n...

在公眾號(hào)上一篇的《污水廠污泥困境》的文章中提到了污水廠過(guò)曝氣對(duì)污泥產(chǎn)量的影響，引起了一些討論，大家對(duì)過(guò)曝氣的看法有很多更好和更深刻的見(jiàn)解，為了把這個(gè)問(wèn)題解析清楚，公眾號(hào)的這一篇就對(duì)污水廠過(guò)曝氣進(jìn)行展開(kāi)討論下。 污水廠的過(guò)曝氣是在運(yùn)行中出現(xiàn)的一種運(yùn)行工況，在正常運(yùn)行下，污水氣（曝氣量）、水（進(jìn)水水質(zhì)、水量）、泥（活性污泥濃度）三者是一個(gè)動(dòng)態(tài)平衡，但是這種平衡會(huì)收到外界環(huán)境因素的不斷變化而被不停的打破，再進(jìn)入到一個(gè)新的平衡中去。定義過(guò)曝氣的狀態(tài)就是指在運(yùn)行中，曝氣系統(tǒng)提供了超越活性污泥系中的微生物降解污水中有機(jī)物所需的氧氣的量，造成了活性污泥系統(tǒng)中的氧氣富裕，檢測(cè)生物池內(nèi)溶解氧的含量過(guò)高（4mg/L以上）的狀態(tài)。 在運(yùn)行人員心中一種普遍的思路認(rèn)為，過(guò)曝狀態(tài)下，活性污泥中的微生物在降解完污水中的有機(jī)物以后，就會(huì)開(kāi)始自身消耗，也就達(dá)到了活性污泥的內(nèi)源呼吸期，使活性污泥自我消化，從而減少活性污泥的產(chǎn)量。   傳統(tǒng)的活性污泥的污泥產(chǎn)量計(jì)算公式中： ΔX=Y（S0-Se）Q-KdVXV ΔX：是每日增...

武漢軍山方艙醫(yī)院為新型冠狀病毒肺炎患者臨時(shí)定點(diǎn)收治單位，其產(chǎn)生的污水中含有大量的細(xì)菌、病毒等致病微生物、有機(jī)物、懸浮物等，具有較高的傳染性和危害性。 本文介紹該醫(yī)院污水處理的方式：“預(yù)處理+以膜生物反應(yīng)器為核心的智能一體化污水凈化系統(tǒng)（ICWT）+復(fù)合消毒”，處理后出水各指標(biāo)均可達(dá)到《醫(yī)療機(jī)構(gòu)水污染物排放標(biāo)準(zhǔn)》（GB18466-2005）所規(guī)定的排放限值要求。同時(shí)，系統(tǒng)全流程密閉，臭氣全收集消毒處理，避免了氣溶膠擴(kuò)散途徑。   一 方艙醫(yī)院污水設(shè)施需求   方艙醫(yī)院是為應(yīng)對(duì)本次新型冠狀病毒肺炎疫情所設(shè)立的臨時(shí)性集中收治點(diǎn)，其污水處理設(shè)施需滿足以下要求： 1、安全性要求高 其污水中含有大量細(xì)菌、病毒等致病微生物，具有空間污染、急性傳播和潛伏性傳染的危險(xiǎn)，若不能妥善處理，可能會(huì)導(dǎo)致環(huán)境的污染，引起病毒的擴(kuò)散、變異甚至出現(xiàn)疫情的擴(kuò)散，因此處理設(shè)施需對(duì)污染物，尤其是致病污染物具有較好的處理效果。 2、抗沖擊能力強(qiáng) 方艙醫(yī)院污水主要來(lái)自病人洗漱、洗浴、大小便等，排放時(shí)間相對(duì)集中，因此水量水質(zhì)的時(shí)變化較大...