【正文】 多孔陶瓷的首要特征是其多孔特性，制備的關(guān)鍵和難點(diǎn)是形成多孔結(jié)構(gòu)。 (2)添加造孔劑工藝 [10]。 (4)溶膠 凝膠工藝 [10]。 這些指標(biāo)與多孔陶瓷濾料在環(huán)境污染治理方面的應(yīng)用密切相關(guān) [12]，一般在保證機(jī)械強(qiáng)度、化學(xué)穩(wěn)定性、熱穩(wěn)定性的基礎(chǔ)上，盡可能要求較高的孔隙率、較大的比表面積、較窄且均勻的孔徑。 即使使用 沉淀除渣或與機(jī) 械脫水相結(jié)合的工藝， 處理后 的 水質(zhì)仍難以滿足國家排放標(biāo)準(zhǔn)。 （ 3） 利用多孔陶瓷處理 結(jié)果 采用多 孔陶瓷板處理火電廠沖渣廢水的工藝，廢水通過微孔陶瓷板過濾處理后，懸浮物 (SS)凈化率可達(dá) 91%~97%，化學(xué)需氧 量 (COD)去除率 89%~95%，出水懸浮物濃度 10～ 15mg/L，達(dá)到國家一級排放標(biāo)準(zhǔn)。該過程是吸附、表面過濾和深層過濾相結(jié)合的過程 [14]， 并主要以吸附為主。因此，生物濾池內(nèi)的濾料成為濾池能否成功運(yùn)行的關(guān)鍵因素之一，要求其必須具有較大的比表面積和優(yōu)良的表面特性，同時必須滿足一定的力學(xué)性能要求。該方法是在廢水中通人好氧微生物并作曝氣處理，使廢水中的有機(jī)物得以分解和凈化。但孔徑太小又影響其滲透量，所以應(yīng)將氣孔孔徑控制在一定范圍 [18]。此除塵器的殼體及結(jié)構(gòu)件均由耐熱鋼制成，過濾元 件為多 孔陶瓷制品，性能關(guān)鍵件由不銹鋼制成，密封部件 為陶瓷纖維制品，故除塵器具有耐高溫、耐腐蝕、耐磨損 、使用壽命長及操作簡易等優(yōu)點(diǎn)， 最終的除塵效率為 %， 是工業(yè)窯爐高溫?zé)焿m治理的理想設(shè)備 。 由此可推出， 將 多孔 陶瓷汽車尾氣催化凈化器安裝在汽油車排氣管中，可以使汽油車排出的 CO、 NO有害氣體轉(zhuǎn)化成 無毒的 CO H2O和 N2，大量實驗證明其轉(zhuǎn)化率在 90%以上；將其 用在柴油車上，碳粒凈化率在 50%以上 [2122]。作為吸音材料， 要求多孔陶瓷要有較小的孔徑 (20～150tma)，高的氣孔率 (60％ )以及較高的機(jī)械強(qiáng)度 [23]。 ．而且 若將其內(nèi)部氣 孔抽成真空，那么多孔 陶瓷將成為目前世界上最好的 隔熱材料 “超能隔熱材料”，其傳熱系數(shù)比硬質(zhì)聚甲 酸乙酯泡沫還要低千倍。不僅可以解決傳統(tǒng)上熱回收的難題，還可以防治熱污染，有利于綠色窯爐的實現(xiàn) [10]。 4 多孔陶瓷應(yīng)用于環(huán)保領(lǐng)域所存在的問題 多孔陶瓷在許多領(lǐng)域已有廣泛的應(yīng)用 現(xiàn)代科技的進(jìn)一步發(fā)展以及多孔陶瓷材料所具有的很多優(yōu)良 特性，使 其 應(yīng)用頗為顯著 ， 尤其在環(huán)境方面于最近幾年得到了飛速的發(fā)展 。 (2)制造工藝特別是微孔級材料制造工藝仍較復(fù)雜，難以大規(guī)模生產(chǎn) ，并且生產(chǎn)成本高，效率低 [30]。 (5)實際應(yīng)用后的多孔材料尚未進(jìn)行再生及回收利用，造成資源的損失浪費(fèi)。 特別是本世紀(jì)發(fā)展生物技術(shù)和控制改善環(huán)境的呼聲不斷高漲，多孔陶瓷材料還會有一個跨越式的發(fā)展，因此我們要保持創(chuàng)新的思維方式，將我國多孔陶瓷材料的研究開發(fā)推向一個新的高度。s Zhangye city during their journey to Kazakhstan, May 5, 2021. The caravan, consisting of more than 100 camels, three horsedrawn carriages and four support vehicles, started the trip from Jingyang county in Shaanxi on Sept 19, 2021. It will pass through Gansu province and Xinjiang Uygur autonomous region, and finally arrive in Almaty, formerly known as AlmaAta, the largest city in Kazakhstan, and Dungan in Zhambyl province. The trip will cover about 15,000 kilometers and take the caravan more than one year to plete. The caravan is expected to return to Jingyang in March 2021. Then they will e back, carrying specialty products from Kazakhstan A small art troupe founded six decades ago has grown into a household name in the Inner Mongolia autonomous region. In the 1950s, Ulan Muqir Art Troupe was created by nine young musicians, who toured remote villages on horses and performed traditional Mongolian music and dances for nomadic families. The 54yearold was born in Tongliao, in eastern Inner Mongolia and joined the troupe in says there are 74 branch troupes across Inner Mongolia and actors give around 100 shows every year to local nomadic people. I can still recall the days when I toured with the troupe in the early 39。t just about sharing art with nomadic families but also about gaining inspiration for the music and dance. Ulan Muqir literally translates as red burgeon, and today39。s president, who is also a renowned tenor, tells China Daily. During a tour in 1985, he went to a village and met an elderly local man, who told him a story about his friendship with a solider from Shenyang, capital of Northeast China39。s to e and recapping the key points. This device, not used in the original, is culturally understandable but artistically mediocre. What puzzles me is the two new songs for the opening and end credits. They were written in English, but sung by Chinese with an unfortable accent. They were obviously designed to appeal to an Englishspeaking base, but do not jibe with the Chinese dialogue. Speaking of the dialogue, the English translation, picked apart by some Chinese, is too literal for my taste. I can imagine a typical American hit by a flurry of royal ranks, addresses and greetings, even multiple names and titles for the same person. The first half hour must be a swamp to wade through, very much like my experience of getting through a Tolstoy tome with its endless inflections of names transliterated into lengthy Chinese. I see the choice of verbatim translation as an effort for conveying exotica. It is fairly petent, with no error that I could detect, but fails to rise above words or capture the essence of the language. A cultural product usually crosses over to a foreign territory first by an emphasis on the monalities. But whether inside or outside China, the temptation to sell it for the differences is just too great. Sure, the sumptuous sets and costumes are a big attraction, but the narrative technique has bee－ how shall I put it?－ a bit anglicized, which is necessary for cultural export. Judging by the responses, this legend, which, contrary to the claim of the English trailer, is totally fictitious, has departed from China but not yet landed on American shores. I am a big fan of Ralph Waldo Emerson39。 he wondered how in the world he came to be