Results 71 to 80 of about 4,382,920 (183)
Gongye shui chuli, 1984 由于原水质量差或水处理不当造成炉水pH值偏低。据调查我市凡采用炉外化学处理的锅炉,大多数都存在不同程度的腐蚀。为此要向炉内添加适量的碱性调整剂,以提高炉水的pH值。为了防腐,要求pH保持在10～12的范围。
朱启冀
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Functional Ecology, Volume 40, Issue 6, Page 1921-1932, June 2026.Read the free Plain Language Summary for this article on the Journal blog. Abstract Most terrestrial plant species form symbioses with arbuscular mycorrhizal fungi (AMF). However, the below‐ground carbon (C) allocation of plants and the nutritional and growth benefits provided by AMF within this symbiosis vary greatly across species and environments ...
Hengjun Zhao +3 more
wiley +1 more source
, 2008 本发明涉及蒽醌染料废水的光催化氧化处理，具体地说是一种用于蒽醌染料废水处理的光催化氧化方法，首先用酸或碱调节蒽醌染料废水的pH值 ≤12，再加入催化剂，一次性鼓入空气，然后在光照培养箱中进行模拟太阳光条件下的光降解；每天在20-25℃下光照14-16小时，光照强度 5000-5800Lux接着进入8-10小时黑暗状态，黑暗时温度保持在16-20℃；催化剂由组分A和组分B组成，组分A和组分B物质的量之比为0.01-2；催化剂与染料的物质的量之比为0.01-2。本发明采用自然光进行蒽醌染料废水的处理 ...
彭艳蓉 +5 more
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Gongye shui chuli含盐废水广泛产生于化工、印染、制药及垃圾渗滤液处理等领域，其高盐度特性不仅抑制传统生物对其的处理效能，还易造成土壤盐渍化、水体生态失衡等环境风险。随着“双碳”目标的深入落实和循环经济发展需求的持续升级，含盐废水的处理技术不断发展，但仍面临挑战。采用文献调研和文献计量学相结合的方法，以聚类分析结果系统展示了近年来含盐废水研究进展及发展趋势。综述了热力法、吸附法、膜分离法、高级氧化法、化学沉淀法、电化学法、生物滤池和膜生物反应器等物理、化学和生物法的原理、适用对象和优缺点。重点列举了“减量化-无害化-资源化”
唐正 +7 more
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Gongye shui chuli, 2011 采用化学沉淀—微滤膜组合工艺处理含铬电镀废水,通过调pH形成Cr(OH)3沉淀,为进一步提高处理效果,用微滤膜对上清液进行处理,去除被FeSO4絮凝的铬。考察了还原剂投加量、Cr6+还原pH、微滤膜处理时曝气量等因素对处理效果的影响。结果表明:微滤膜能够有效处理化学还原沉淀后的电镀废水中的铬,出水中的铬达到《电镀污染物排放标准》(GB 21900—2008)中特殊领域和地区一级标准。
张志军 +4 more
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Harnessing social media data to track species range shifts
Conservation Biology, Volume 40, Issue 3, June 2026.Abstract Biodiversity monitoring programs and citizen science data remain heavily biased toward the Global North. Especially in megadiverse countries with limited biodiversity records, incorporating social media data can help address existing data gaps.
Shawan Chowdhury +15 more
wiley +1 more source
Biodiversity‐driven spatial conservation planning to delineate temporally stable regions
Conservation Biology, Volume 40, Issue 3, June 2026.Abstract The accelerating loss of biodiversity underscores the critical need for effective conservation strategies, particularly in the face of climate change and anthropogenic pressures. We devised a conservation planning framework that adopts a temporal stacking approach to species distribution models and landscape connectivity analyses. These models
Mattia Iannella +5 more
wiley +1 more source
, 2003 本发明涉及生物质开发和利用，具体地说是一种生物质纤维连续膨化新工艺及其专用膨化装置。将化学前处理与高压膨化处理相结合的连续膨化处理过程，工艺为：1)化学处理：将植物纤维用体积百分比为1～15％的强碱溶液浸泡，浸泡时间为3～24小时；2)膨化处理：将所述经化学前处理的植物纤维用高压螺旋推进杆推进膨化装置的压力形成腔；在压力形成腔内，将温度升高至100～160℃，并使水蒸气压力达到1.5～15公斤；用所述强碱溶液调pH值至6～10，经膨化装置的喷口喷出，膨化；其装置为安装3个高压螺旋推进杆、合理设计螺距结构。
王海岩, 李雪驼, 徐和利
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Gongye shui chuli, 2010 采用MBR处理化工废水终端出水,对膜处理调试及运行阶段遇到的问题提出相应的解决方法,可使出水COD<60 mg/L,并达到江苏省《化学工业主要水污染物排放标准》(DB 32/939-2006)的规定,出水回用至循环水装置。
徐贞银
doaj
Defining and identifying relevant stakeholders to advance effective conservation
Conservation Biology, Volume 40, Issue 3, June 2026.The challenge of defining stakeholders in environmental science and an approach for refining existing definitions. Abstract Stakeholder is a contested term that has spawned a multitude of ad hoc definitions. The ambiguity of these definitions has oftentimes impeded transdisciplinary research in environmental governance and conservation science because ...
Milan Büscher +5 more
wiley +1 more source