【正文】 s Liaoning province, decades ago. The solider gave the old man a handmade saddle when they bid farewell. The story inspired Nasun to write Carved Saddle, a song that later became one of his most popular numbers. Now, every year, Nasun recruits young singers and dancers for the troupe. The troupe has also designed a new repertoire, which is mostly based on the daily lives of Mongolian people, especially the lives of nomadic families, and has bined contemporary musical elements with folk songs of the region. Haimu, a 25yearold khoomei (a local variant of overtone singing) singer, joined the troupe three years ago. Along with a sixmember band, he performs fast songs and soft ones that he writes－ all while playing the horsehead fiddle.Although I learned the piano since childhood and grew up listening to various kinds of music, to me, the folk music of Inner Mongolia is the root, he says. Performing in remote villages is pleasant. I feel at home on the boundless grasslands, and the warm people there make me feel fulfilled. The first round of spring auction season in Beijing ended last week, but it failed to create much spring in the art market. Although two pieces of Chinese painting fetched more than 100 million yuan, the decline in trading volume and sa le rate showed a downturn this year. In the ―Grand View: Chinese Painting Highlight‖ session at China Guardian 2022 spring auctions, Pan Tianshou’s representative work Eagle, Rock and Flora hit a record auction price of 279 million yuan, while Li Keran’s masterwork Jinggang Mountain fetched million yuan, an unexpected high in recent years. However, the trading volume fells to billion yuan from billion yuan in the same period the year before. The Huangchen 2022 Spring Auctions, which recorded million yuan in total sales, experienced the same. The section number went down to 5 from 12 pared to last year. According to expert Shao Jianwu, the art market did not attract much excitement this year due to the booming stock market and the persistent problems of fery and fake deals. The two pieces of Chinese painting notched up high price this spring due to their own value not due to a revival in the market. The successful transaction of two works with a hammer price of more than 100 million yuan once again confirms that valuable and rare works of high quality always earn the longlasting high price. Chinese painting and calligraphy is still the pillar of the market. However, the overall sales rate has dropped slightly, which reflects the demand for the ordinary auction goods has weakened,‖ said the president of China Guardian’s Hu Yanyan. Besides, the entry of n。s Poly Theater. Their show, titled Ulan Muqir on the Grassland, depicted the history and development of the art troupe. Being from the region allowed me to embrace the culture of Inner Mongolia and being a member of the troupe showed me where I belonged, Nasun, the art troupe39。s performers of the troupe still tour the region39。t have a formal stage. The audience just sat on the grass. Usually, the performances became a big party with local people joining in. For him, the rewarding part about touring isn39。80s. We sat on the back of pickup trucks for hours. The sky was blue, and we couldn39。s Shaanxi province pass through a stop on the ancient Silk Road, Gansu39。污水廠污泥處置及利用途徑研究。污泥處置技術(shù)展望。 同時，王吉祥和吳慶權(quán)等同學(xué)對于本次設(shè)計給予了我極大的幫助，在此表示深深的謝意。黑龍江生態(tài)工程職業(yè)學(xué)院 畢業(yè)設(shè)計（論文） 24 致 謝 在本次設(shè)計中，我的導(dǎo)師 安堃 老師給予我極大的幫助，指導(dǎo)我的論文寫作和設(shè)計，使我學(xué)習(xí)到了許多的知識，并且提供給我大量的文獻(xiàn)資料和數(shù)據(jù)。 （ 3）構(gòu)筑物布置緊湊，呈直線型布置，盡量以渠道連接，這樣一來可以減少水頭損失。 （ 2）設(shè)備選型選用高效、低耗的產(chǎn)品。管理者可通過終端機隨時了解全廠運行情況，并及時作出決策意見。 （ 3）數(shù)據(jù)終端機 在廠長室和化驗室各設(shè) 1 臺數(shù)據(jù)終端機，掛在網(wǎng)絡(luò)總線上。 控制分站主要由可編程邏輯控制器（ PLC）和 UPS（不間斷電源）組成。控制軟件在 Microsft Windows NT（或 Unix操作系統(tǒng)）平臺 上開發(fā)。其控制系統(tǒng)的結(jié)構(gòu)為： （ 1）廠級控制中心。脫水車間的平面尺寸為 。一期脫水機每天工作 9h，二期每天工作 18h 便可滿足要求，不需要增加設(shè)備。脫水后，泥餅含水率為 75%左右，污泥體積為 。每座濃縮池設(shè) 1 臺柵條濃縮機，共 2臺。采用連續(xù)式重力濃縮池兩座。 d)，濃縮時間為 。 （ 2）污泥濃縮池 污泥濃縮池設(shè)計，進(jìn)濃縮池剩余污泥干重為 9100kg/d，含水率為 %，污泥體積為 1517m3/d?；亓魑勰?總管采用 DN1020?8鋼管，剩余污泥總管采用 DN219? 6黑龍江生態(tài)工程職業(yè)學(xué)院 畢業(yè)設(shè)計（論文） 22 鋼管。 Q=100m3/h，H=10m,N=。 Q=800m3/h，H=5m,N=30kW。剩余污泥干重為 9100 kg/d，含水率為 %，剩余污泥體積為1517m3/d。 經(jīng)該技術(shù)合成的燃料產(chǎn)生的煙氣，可以通過常規(guī)的氣體凈化裝置去除其中的酸性氣體及其他大氣污染物。通過化學(xué)活化法，選取氯化鋅作為活化藥劑，再被處理，防止了污染；污泥作為型煤黏結(jié)劑，可改善在高溫下型煤的內(nèi)部孔結(jié)構(gòu)，提高型煤的氣化反應(yīng)性，降低灰渣中的殘?zhí)?。馬志毅等利用污泥制取的吸附材料性能如表 所示。 黑龍江生態(tài)工程職業(yè)學(xué)院 畢業(yè)設(shè)計（論文） 20 圖 污泥制取吸附劑工藝流程 從工藝過程可知，污泥制取吸附劑的途徑有 3 條，針對不同的污泥、所制取干 化 熱 解 空氣中氧化 化學(xué)活化 烘 干 物理活化 吸 附 劑 污 泥 初級處理和二級處理 氣浮濃縮 重力濃縮 離 心 真空過濾 干化床 壓濾機 焚燒 土地處理 駁運 好氧或厭氧消化 熱處理 濕式氧化 返回處理的廢液 返回處理的污泥固體 污泥 圖 污泥的處理與處置工藝概況 黑龍江生態(tài)工程職業(yè)學(xué)院 畢業(yè)設(shè)計（論文） 21 吸附劑的不同用途，可相應(yīng)采用不同的制取方法，而不同的制取方法所產(chǎn)生的吸附劑的性能差別很大，一般所制得的吸附材料性能為：化學(xué)活化＞物理活化＞空氣中氧化。 本工藝采用污泥活化制取吸附劑技術(shù)來回用污泥。在大多數(shù)情況下，生污泥 先經(jīng)濃縮和消化池內(nèi)的好氧或厭氧穩(wěn)定，然后經(jīng)干化后直接排入土壤、填埋場處置或者焚燒；另一種處置方法是先對濃縮穩(wěn)定以后的污泥進(jìn)行機械脫水，然后進(jìn)行堆肥或焚燒處理。 （ 2） 污泥處理方法的選擇 污泥處理的目標(biāo)是為了使最后的污泥殘渣能安全地排入土壤、貯存塘或者海中。根據(jù)不完全統(tǒng)計，全國污水排放量為 ?107m3/d，不同規(guī)模、不同處理程度的污水處理廠有 100多座。厭氧消化污泥呈黑色，有一股焦油味，在砂濾床上能形成 20cm厚的沉積層，一周或兩周后可鏟起。 黑龍江生態(tài)工程職業(yè)學(xué)院 畢業(yè)設(shè)計（論文） 19 通過觀察污泥的外觀和顏色以及辨別污泥的氣味，可以判斷污泥的狀態(tài)。從廢水中去除的污染物絕大部分轉(zhuǎn)變成污泥，污泥的體積占進(jìn)入處理廠的廢水流量的 1%左右，其中可能含有病原微生物和有毒物質(zhì)。 m)。二沉池的排泥通過刮泥機的作用，采用 DN630?8 鋼管將污泥排入排泥井，再通過一根 DN1020? 8 鋼管流入污泥泵房。共用一座 配水結(jié)合井，中心為配水井，周邊依次為排泥井、出水井。 每座二沉池內(nèi)設(shè) 1 臺周邊轉(zhuǎn)動刮泥機，利用池內(nèi)水位以及真空系統(tǒng)吸排泥至排泥井。 二沉池的設(shè)計以及計算 （ 1）二沉池的面積 黑龍江生態(tài)工程職業(yè)學(xué)院 畢業(yè)設(shè)計（論文） 17 2m a x 360 mqnQF ??????mFD ???? ?mtqH ?????35000121 )11(421 )1(4)1(4 mR QRXX QXRVr ?????????? ???????XXXRX r 2)111()11( ?????smQRQ